Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3

Arriving at a new section of Black Mesa, you work your way through to a test chamber where you are transported to part of the border-world called Xen.

There, you are asked to help Xen and its lifeforms.

Your job, should you choose to take it, is….well, wait and see.

Basic Details
  • Title: Mission of Mercy
  • File Name: hl1-sp-mission-of-mercy.7z
  • Original File Name: mom.zip
  • Size : 2.45MB
  • Author: Dave Waters
  • Date Released: 22 September 1999
Tips

You will need to lead a scientist and a security guard to open some doors for you.
Once the rocket has been launched, go down the elevator but send it back up, to see the exit.
If, and I am certain it will, the mod crashes as you exit the pipe into the outside, just noclip through to the centre of the stone and look for the pipe. It should work from there. Some say that NOTARGET works, but I haven’t tested that. If you don’t want to do that, you are only missing 30 seconds and no fighting before the mod finishes anyway.

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Installation Instructions
  • Copy the mom folder into your Half-Life folder.
  • Restart or start Steam.
  • Mission of Mercy should now be listed in your Library tab.

If you require more help, please visit the Help page.

Screenshots

Click on the thumbnails below to open a 1024 pixel wide image.
WARNING: The screenshots contain spoilers.
The correlation between the thumbnails and full-size images has got lost. Sorry about that.

Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3 Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Reader Recommendations
14 recommendations, average score: 3.79 (out of 5), standard deviation: 0.88
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Meta Review Data
Statistics based on 1 comment(s) with meta review data.

Installed
Using MapTap: 0 Users
Manually: 1 Users

Time Taken
Average: 0 Hours, 40 Mins
Shortest: 0 Hours, 40 Mins by Qwertyus
Longest: 0 Hours, 40 Mins by Qwertyus
Total Time Played: 0 Hours, 40 Mins
Published

21st August 2011

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Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
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Play It Now!Play It LaterMaybe?Maybe?Phillip says Play It!Maybe?Maybe?Play It LaterMaybe?Play It LaterPlay It LaterThink TwicePersonal FavouritePersonal Favourite
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29 Comments
  1. david4255 28 comments

    8th June 2007

    Can someone give me some advise please? I'm at map newsp6. Launched missle, got tha Gauss Gun, now I'm in a drainage pipe headed out side. On top of what looks like a helipad are 2 soldiers and a choper hoovering ahead.After eliminating soldiers I attempt to jump out of pipe and game crashes to desktop. I've lowered sound to "0", lowered sound accelleration to either basic or no acceleration. Tried everything I can think of but still can't seem to get out of that pipe. Help please.

  2. andyb 1034 comments

    8th June 2007

    It did that for me too so I loaded it into my none steam HL and went through it.Basically you kill a half dozen soldiers,drop down a pipe meat a zen ship and game over.So basically you missed 30 seconds of it.

  3. david4255 28 comments

    8th June 2007

    Play It Now!

    Thanks andyb. The only HL version I have is thru Steam but will continue to try new things in hope I will find a solution.

  4. jontym 6372 comments

    28th June 2007

    security door wont open on first map to retrieve the weapons before you go through the portal what am I doing wrong?.

  5. EddieLee 35 comments

    26th July 2008

    Perhaps someone can help me. I cannot find how to get to map newsp5 ! I have launched the rocket, got the gauss gun, and even went back to the lowest level of the silo to fight more grunts (all in newsp4), but cannot find the trigger to map 5. I have gone back to every section of the complex and all the bad guys are dead, but still cannot enter map 5.

    Any help is appreciated.

  6. EddieLee 35 comments

    26th July 2008

    Please ignore the above post; I just found it.

  7. piledriver 290 comments

    17th October 2008

    Play It Later

    Short but OK mod. Some nice environment design. Not enough fighting for me.
    Didn't have any problems as in post# 1.
    Transport up into the Xen ship. The end

  8. mel 736 comments

    17th October 2008

    This mod received good reviews back when it was first released, i.e. 1999 with the following game sites ranking as follows;

    H-King 10/10
    EH/10 7/10
    Pixel 9/10
    H16 9/10

    I seemed to have rated it lower at the time scoring it 6/10 which seems a bit mean in comparison, may give it replay just to see.

  9. mcrip 6372 comments

    3rd February 2009

    Maybe?

    I like mods to travel through unknown spaces. This mod uses the same map a few times to switch something here, go back, switch there, go back an fight a few spawn soldiers and blackops standing in the way.

  10. Matt714 6 comments

    1st March 2009

    I experienced the same issue than david4255. I tried to contact the author, to no availability. Seems like this mod is definitely not Steam-friendly.

  11. Loke 149 comments

    17th July 2011

    Maybe?

    I had the same issue as the people above; the game crashes whenever the grunts attack you or you engage them right outside the sewer pipe in newsp5. You can sort of skip this bit by either turning on notarget in the console and run through the grunts and into the next map or just load the next map by typing map newsp6. Really annoying on an otherwise fairly solid map pack.

    Apart from this game breaking bug I sorta enjoyed it. It's a bit unfair and sometimes frantically frustrating as this is fundamentally just a gruntfest and you never run into any allies along the way. And there's a lot of them. Worst still is that there's not many health packs or stations to aid you. Usually you never get any resupplies, expect for perhaps one health pack, just before a tough battle so prepare to do a lot of quick saving and loading until you are satisfied with the results, i.e. not having less than 12 HP left after one firefight.

    The combat section aside the maps reeks of high quality in terms of level design, texturing and lighting. There's nothing architecturally impressive but this is of no major issue since everything else looks very good and fresh.

    It's hard to really recommend this due to the aforementioned bug and unfair combat but if you are looking for a challenge you might want to take a look.

  12. Phillip says Play It!

    This was an enjoyable mod but I did struggle to find the route at least once. I was going up and down the elevators a few times before I finally realized what I was supposed to do. Even now, I don't think it's entirely obvious.

    Anyway, if you gets tuck, please see the main post for TIPS.

    The mod has a polished feel about it, it fits my playtime desires; that is around 90 minutes, has a basic story and was well balanced.

    There are two areas that bugged me. The first one is the vent that leads from the storage room, behind the security guard's desk. If it doesn't lead anywhere, don't allow me to go there! At least the author loaded the last quick save when I died.

    And the second is where you die because you pressed the wrong elevator button. It was possibly funny in 1999, but now it just seems stupid.

    All in all a fun mod to play and more like this would be very welcome.

  13. Whatever You Want 158 comments

    21st August 2011

    The screenshot thumbnails are completely different to the screenshot themselves.

    I'm stuck at the part where we first see the grunts, am I meant to just run past them until I find a weapon?

    EDIT: I just realised that I missed the peashooter and 357. Way too easy to miss, I am not impressed…

    ReplyEdited at 12:13 PM, 21st August 2011
    • The screenshot thumbnails are completely different to the screenshot themselves.

      Yes, sorry about that. I mention it above the screenshots.

      • Whatever You Want 158 comments

        21st August 2011

        Yes, sorry about that. I mention it above the screenshots.

        Oh, I didn't see that. Sorry!

  14. Whatever You Want 158 comments

    21st August 2011

    Maybe?

    There were too many annoying things in this.

    I did enjoy this mod but I found that I constantly had to backtrack or use cheats for some reason or another. The penultimate map was a disaster. A mix of combat and puzzles it was fun but way too easy, especially near the end when you have the 357, Tau and xbow. Also you work for the Xen aliens and so only kill grunts, which was a nice idea and should be implemented a lot more in my opinion.

    It is incredibly easy to miss at least FIVE of the weapons in this mod, which are: 9mmhandgun, 357, Tau Cannon and crossbow. I missed the two weapons at the beginning and so had to restart the mod in order to get them, the other three I didn't miss but I would have had I of not decided to turn back and go down the lift. The lift that kills you annoyed me horribly, not something you want to see after fighting your way through many grunts, although I managed to call the lift without dying because of the wall glitch second time around. It still loads your last save however. Then we get to the stage where we crash after coming out of the pipe which I think is caused by someone using a weapon in the wrong position (grunts or you) so just noclip past it.

    I was unsure whether to give this a TT or a Maybe, but decided to go with the latter because it was relatively enjoyable.

    ReplyEdited at 1:34 PM, 21st August 2011
  15. Bolx 214 comments

    21st August 2011

    Maybe?

    And yet another one that could have been better than the screen-shots suggest, but was fun(ish)!

    OK, if Gordon killed Nihilanth at the end of HL1 and was the last of his kind, what's he doing here?

    The game wasn't really challenging but there is some fun value in it. Near the beginning you transport to Xen and the temptation to kill the residents is strong, however none tried to attack, not even the bullsquid (which normally attacks humans and Xenizens alike!).

    The look and feel was nothing special, however in 1999 people probably thought it looked good.

    The end (or from what I've since read is close enough) was the game killer I tried noclip and notarget and running in software mode but the pipe was the end for me as well.

    • Whatever You Want 158 comments

      21st August 2011

      I tried noclip and notarget and running in software mode but the pipe was the end for me as well.

      Did you try what Phillip said in the tips section? Noclip underneath the pipe and into the other one, it worked for me. The ending is just one big long boring sequence with nothing to offer anyway.

      ReplyEdited at 6:17 PM, 21st August 2011
      • Bolx 214 comments

        21st August 2011

        Yup! and same thing!

        After reading your reply went back and tried it again and still no joy, thanks anyway.

  16. Unq 494 comments

    21st August 2011

    Play It Later

    Mission of Mercy is one of my favorites from the early days. It has mostly held up to the test of time, but the polish has come off it a little. It's still worth a play, but it did also crash for me on the Osprey map repeatedly, I had to use notarget to get past that map. It's very near the end anyway.

    It's pretty well designed, although I can find some fault with the side treks that you have to do if you want to find all the weapons and health. And essentially, you'll need these weapons in the vehicle bay and rocket silo because they're both full of grunts and are pretty good challenges. I also didn't like the death trap elevator. It wasn't really funny in "99 either, I can assure you.

    At heart this was a gruntfest, but I did like the challenge it provides. It's too bad the Osprey map crashes for a lot of people, this can actually be a pretty challenging section since the Osprey replenishes the grunts you kill. Mission of Mercy does set up the scene pretty well though, having you work for the Xen aliens. There's not much story otherwise, the opening maps just kind of set up the framework for the maps.

    Overall it's a nice play but can't really be counted among the best of the best like it was in the early days.

  17. vancanucksfan 246 comments

    22nd August 2011

    Maybe?

    Didn't really enjoy this one. There are areas where new enemies spawn out of nowhere after you have cleared them, which is really annoying. Also I missed the first cache of weapons when I played the map the first time, which made the rest of it extremely hard. I had to wait for the grunts to blow each other up with grenades so I could grab a gun, which was not easy. That and the broken ending make this something to do only if you are really bored.

  18. Play It Later

    G-Man couldn't control Xen, so he decided to destroy it. The aliens asked Freeman to help them.

    The beginning frightened me – another truck – Unknown Faction reminder! Good thing that there's no truck ride. We enter the corridor with original "sharp" architecture, take the suit and turn on the teleporter. Unfortunately, it couldn't go on without a tragedy, poor guard :( We don't forget to take his weapons and enter the teleport.

    The firefights at the base are very intense – I had to dodge with 1% of health, I enjoyed it, but I know that this is a love\hate moment, because not everyone likes hard challenges. Do your best to find the crossbow at the next level, so you'll be able to relax later.

    The design is decent, the layout is interesting, but puzzling and confusing. I didn't find a way to progress at the second level after Xen, it turned out that we need to go back to the first and search there.

    It ends at the railroad bridge, which is very similar to the one in Kingpin: Life of Crime.

    If hard battles and puzzling layout don't frighten you, play it.

  19. Hec 1003 comments

    23rd August 2011

    Play It Later

    I'll give this a play it latter because worths the effort but I think layout issues hindered the gameplay which I think it could be so much more fulent and dynamic, that section right after launching the rocket where u have to go back to get the gauss cannon was almost nosense and is the cause of the major unbalance in this mod, also that part where u press the button of the elevator in another wasted outside area and the funny grunties send you an explosive gift that kill u and u hear the funy guys laugh, maybe was an humoristic cliche, but was nosense too just a waste of mapping in my opinion, i'd preffer found the gauss cannon there, than that silly explosive gift.

    The 6th map prior to the ending one crahed for me and I have to finish this mod in my old sierra HL verssion, thing which I hate but strangely has become common in the recent last 2 mods that i've played, maybe that hapens because of the ageing of the mod or something related to that. Overall, and despite of that crash the mod was ok, with a basic story-mission but if the author would have polished the layout problems we could have a play it now here.

    I also almost forgot to tell you i've alredy played this mod about 5 or 7 years ago!!, I didn't remember it untill I played it and loked familiar to me so yeap that's odd, because I almost remember everything i've played just by watching the screenshots.

    ReplyEdited at 11:37 PM, 22nd August 2011
  20. Technic 474 comments

    1st June 2012

    Think Twice

    Old classic pack by US author Dave Waters, I guess everyone already played this often ;)
    What's cool here is the story and the presentation itself.
    The aliens are your friends as you are the only who can save their world from the evil forces of humanity behind the Gman.

    While story and mapping is nice and very good, I just can't be that happy about the rest.
    But let's check the good arguments to play MoM first.
    As said, the story is usual but still in the HL universe.
    Nihilanth wants you to launch the rocket before the humans to save the Xenians after they found out that you, Gordon Freeman, have great abilities in your HEV suit..
    Or maybe just "limitless potential" ? ;)
    You agree to their plan to launch the rocket and are being send down to Earth to complete this mission…

    The mapping is very cool and stunning, I like the architecture and layouts much, also the lighting and the varied areas you'll have to visit.

    Now what I don't like are several facts.
    First of all it's balancing, there is a bad mix of much ammo, but less healing possibilities here.
    The number of grunts is quite high, so it's tough combat as they're usually not alone..
    Then, for my taste, there are just too many design flaws and oddities like enemy placement, triggering scripts and suddenly appearing grunts out of nowhere.
    Another example is that you often run into some new sections and are already expected there.
    You'll know what I mean when reaching the rocket, a dark hall, the outdoor areas etc.
    There's even a deadly end which is kind of pointless and unnecessary…
    At least there are auto-saves.

    And some easy puzzles, cutscenes and scripts.

    BUT, that doesn't save it. Maybe it was a great mod back in "99, but to me it's not good as it could have been if only the author would have made it more realistic.
    Therefore I can't recommend to play it these days..

    Pro's:
    -Unusal HL story, aliens are your friends (but they never help you unfortunately)
    -Supreme mapping, great design and lighting
    -(Too?) tough combat situations
    -A few, easy puzzles
    -A few scripted sequences
    -Some cutscenes

    Con's:
    -Balancing (see above)
    -Many design flaws, oddities and illogicalness etc.
    -Short playtime
    -Stupid AI
    -Deadly end
    -Disappointing ending

    Mission failed!

  21. "Single

    As expected with this anticipated release, Dave Water's takes the wide open spot of second best Half-Life SP level as far as I'm concerned. Second best can't be a bad thing; but USS Darkstar continues to be in its own universe; nothing released so far, including Mission of Mercy can come close.

    Good Half-Life levels of this calibre have been so very hard to come by that maybe the actual quality of each map has been blown out of proportions; In Quake2, this would've been just a very good level, but because it's Half-Life, it's absolutely unmissable! But then again, Half-Life requires so much more work and depth in the SP levels because of the high standards Valve set. When Quake2 maps such as The Widening Gyre easily rank amongst the best because of looks, fighting and layout alone, Half-Life maps are obliged to much more than that. Things like stories and scripted events become so important and always, with the exception of USS Darkstar, felt underdone in all the levels I've played. Mission of Mercy is no exception and despite its exceptional quality, I was still left thirsty for something more epic.

    The context is certainly something very original and intriguing; you must help Xen from getting destroyed by the government? Taking orders from Nihilanth doesn't exactly go into your mind peacefully, yet I admire the originality. But the concept wasn't used fully. For one thing, the Xenoids are completely taken out of the action! They're your allies, and they're big, mean mothers! A script that has friendly Xen teleport into grunt-fights to help you survive would've made sense and also would've been inifinitely awesome. Instead grunts are the only baddies you have to kill as you wander through a big millitary complex, trying to find a rocket to launch, and then escape. Quite a typical, rather unoriginal style, but it really showed promise at the beginning to be something otherwise.

    One thing Dave's got locked for certain though, is the base design. I'm talking about Valve quality architecture here!

    Continue reading the review on Ten Four…

    Notes
    This review is republished here by permission and was originally published Friday, 1st October, 1999 by Jiang.

  22. A.P.$lasH 1 comments

    6th February 2013

    If you are still having problems with exiting the pipe in Steam version, do the following:

    1. Change directory to k:\Steam\steamapps\Your_Steam_Name\half-life\mom\maps\graphs\
    2. Create an empty file named newsp6.nod
    3. Load you save game right before the pipe
    4. Enter the pipe and proceed with your mission

    The game will automatically rebuild all nodegraphs for this map. You need to do this only once.

    Enjoy :)

  23. Qwertyus 162 comments

    28th March 2013

    Personal Favourite

    Great short episode for Half-Life, even too short fo me :( , but very interesting and fun :) . And I didn't see any bugs or oddities in the whole mod (I successfully played it not less than 4 times), so you better try to search a bit before you consider that you get stuck.

    • Sparks 240 comments

      29th March 2013

      Did you play it in Steam or WON? I got the map6 crash in Steam, but managed to noclip into the final map. Interested to know if your Steam HL behaves differently..

  24. TolisXTRM 119 comments

    24th December 2013

    Personal Favourite

    Yes, this is a personal favorite. I liked it that much.

    The story is that you're a friend with the aliens and they want you to launch a rocket.

    The combat was amazing. I never felt cheated or annoyed.

    The atmosphere was great.

    The cutscenes are pretty good and not too shabby.

    I say try this one. It's that good (imo anyway).

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