Another reality another outcome.....

Shephard is currently stationed in Santiago military base - Arizona there you're part of an special elite force called H.E.C.U - the Hazardous Environment Combat Unit. Of course you're very proud to be part of such a highly decorated military unit. The training was certainly hard but Shephard and that is you never gave up. At the moment our hero is heading over to the firing range for some training as suddenly all alarms sirenes started howling all over the place. Something is up and it's something big. Your entire battalion has been ordered away to a top secret facility only known to public as Black Mesa which is somewhere located in new mexico.

And here it begins. Witness a catastrophe of unknown magnitude as you get deeper in side the facility. Your mission is simple evacuate and resuce as many survivors as you can find out what really went wrong.

Are you good enough to be a real soldier? Can you reveal the truth about the events that occurred in Black Mesa or will you fail bitterly die trying? Find out when the mod gets released.


- Intence storyline awaits with many surprises for the player.
- An enviroment that almost feels alive.
- Many custom voices & sounds.
- Several new monster skins to give the players more variations when fighting the Monster hordes.
- 4 complete chapters with over 30 maps.
- Visit & revisit new & old areas of Black Mesa.

My Team and mod contributors:

"23-Down" - Mod Leader, Lead Story Writer, Lead Level Designer, Lead Texture Artist, Lead Sound Engineer.
"Neclipse" - Level Designer, Technical Advisor, Voice Actor, Game Tester.
"Thanoshlthebeginning" - Level Designer, Game Tester.
"M82sniper" - Model Skinner, Game Tester.
"Awkook" - Level Contributor, Voice Actor.
"Kaeps 133" - Game Tester.

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Hi folks.

it's been a while since I released this mod. In fact over a year has passed since release. As you may guess real life interfered a great deal in regard of a patch that I promised a long time ago. But as the good old saying goes "Better late than never."And so here it is. Game play wise not a lot has changed since last release. How ever one of my biggest achievements is possibly making this mod Won compatible.

So if you despise Steam for what ever reasons now is your chance to download the mod and play it through. :) During WON testing though I noticed that some maps might crash if you launch them directly through the console. So better play it through the regular way. :)

How ever WON is still not perfect for example the mod would require you to have your opfor/blue shift CD in your DVD/Blue Ray drive in order to hear the music. Without it a lot of the good atmosphere is lost. So keep that in mind.

Anyway let me show you the patch notes so you can have a look on what has changed for yourself.


General mod updates:

-Made the mod WON compatible! :)

-Fixed various texture misalignment's'.

-Added few more details to numerous levels.

-Added more Ammunition for the Saw249

-Added 1 new ammo location for the Spore Launcher.

-Added 1 new larger Section in a level leading to a secret chamber.

-Added another larger section in another map. A follow up secret area of the 1st secret area.

-Added the displacer gun to the game.

-Added 1 entirely new map to the mod. Raising the count of maps to 16 total.

-Fixed numerous map transitions. So the player wont notice drastic changes in the environment anymore. Only Mil_Duty8 to Mil_duty9 & 10 to 11 maintain drastic changes in form of lightning. I Couldn't fix that for some illogical reason.

-Barneys still complain when you fire at them. But their chatter makes more sense now. They threaten you.


-Added more npc action in that map.

-Fixed disappearing model glitches.


-The map now fades in so that the players wont be so confused anymore about the radical changes around them.

- The Zombie playing it's animation is now kill able. He refused to die before while playing it's animation.

Mil_duty6, 13,14:

-Slightly different monster numbers in combination with WON compatibility.


-Fixed the bug causing ammunition to fall through the map near the train area.


-Fixed the Train stuck bug up to 80% in most cases it will work charming now. Just sometimes I noticed that it wont work as intended and the player can still get stuck after the map transition from level7 to level8. That happened mostly when beginning the mod at some later point in game through the console. So it works best when starting from military_duty1 all the way to the end.

There were plenty of more fixes but I can't recall em right now.

As you know it from me. Some screens + Dl link below to make the long text worthwhile.

Military Duty

Military Duty

Military Duty

Download Link:

Side project Military Duty released

Side project Military Duty released

News 1 comment

The Opposing Force mod Military Duty has been released

Project announcement

Project announcement

News 8 comments

Today I'm announcing a smaller side project of mine. One I've been working on for quite some time now but just recently have I made massive breakthroughs...

Lifesign detected

Lifesign detected

News 4 comments

I've returned once again. Several improvements have been made over the year.

Sitrep = Situation Report

Sitrep = Situation Report

News 12 comments

Today I have great news to tell. New models and maps are coming great along.

RSS Files
Black Mesa Helicopter set (reskinned)

Black Mesa Helicopter set (reskinned)

Vehicle Skin 5 comments

To my knowledge the first set of model props ever released which contains Helicopters in model format based upon the Black Mesa Research Facility. The...

Comments  (0 - 10 of 137)


Reply Good karma Bad karma+1 vote

A question,In Military Duty,There are Zombie Variants,right? Well,Could that be made for HL1 and it's expansions? Just a mod about that,zombie variants

Reply Good karma Bad karma+1 vote
23-down Creator

I'm afraid not. It wont be easy at least.. There are tools that allow you to hack entities without the need to decompile the maps but you would've to do it all by hand. The zombie models I use in my mod would be already usable in every mod as long as the mapper selects the appropriate skins in the map editor which would also be the identical method of getting em in with the map hack tools. Don't ask me for names though I don't know em. I think bsp-viewer allowed you to view maps and possibly edit them.

Reply Good karma+2 votes

Oh,thanks for the reply anyways,I thought it was possible,because there is Mini Mod,a mod for HL1 which has Zombie Variants and more effects (Which I don't like) but,thank you anyways

Reply Good karma Bad karma+3 votes

Is this near completion?

Reply Good karma Bad karma+1 vote
23-down Creator

It's currently more or less on Ice due to little free time.. Many maps got issues that still need fixing and the story plot itself is also incomplete although I was considering to release it chapter by chapter. By the current play time it's already longer than Military Duty was.

What do you think?

Reply Good karma+3 votes

The link of military duty doesnt work :(

Reply Good karma Bad karma+1 vote
23-down Creator

Works fine for me.. Try the direct link:

Reply Good karma+2 votes


stealer, you stole and modified military duty

Reply Good karma Bad karma-5 votes
23-down Creator

Ehm dude I'm the author of that other mod page as well. ^^
Both Firestorm and Military_Duty belong to me.. :P
Anyway thanks for your input it's good to know that people worry about these things. It's important that each one of us respects the property of other people. Be it a mod or real property of any sorts. ;)

Reply Good karma+6 votes
Thanoshld Creator


Reply Good karma+3 votes
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