Version 4.1.1

released an app at Shuttles & Asteroids , back to the ballistics!

The Evolution of the First Person Shooter

Requirements: Any Source Game

This month Upcoming version 5.0 with all Player and AI DOD animations including prone. New Fire Control Code allowing AI to fire all weapons at proper Rates of Fire (ROF) with full Audio

Game Summary:
Engage in ultra realistic fire fights with AI and/or players in 6 Game Modes: Death Match, Team Death Match, Fallback, Surge, Hold and Control. Play with 3 possible Combat Profiles: Hollywood, Regulation or Realism. The ongoing mission of the OccupationCS Development is to capture the realistic dynamic, destructive nature of the Bullet in a fast paced dynamic combat environment.

Game Features:

Advanced Real-Time Bullets

  • Complex Bullet Ricochet / Penetration / Bore / Exit
  • Projectile Fragmentation / Expansion
  • Energy/Cavity Based Damage

Simulated Body Health

  • Vital Blood Loss
  • Shock Response Recovery
  • Bandage Repair
  • Knock Downs/Knock Outs

Image RSS Feed Latest Screens
Occupation Game Occupation Health Occupation Ballistcs System Diagrams
Blog RSS Feed Report abuse Latest News: OccupationCS: Source 3.03 Released

3 comments by EnterpriseG on Nov 13th, 2010

OccupationCS: Source 3.03

The latest Orange Box version of OccupationCS: Source has been released.
It's a whole new game...

Real Time Projectiles, Cavity Based Damage, Physics Calculated Terminal Ballistics, Bullet Deformations. The Evolution of the First Person Shooter!

OccupationCS: Source 3.03 is the most efficient, stable version of OccupationCS to date. It captures the reality of armed conflict in a fast paced Single, Coop and Multiplayer First Person Environments. FPS Combat will never be the same again.

The latest version of OccupationCS: Source has been released, incorporating a range of updates and most importantly support for the updated Orange Box engine.
Most noticeably different is the updated spawn menu and weapon selection. Players can now select a class which has access to a particular range of weaponry. Once a weapon is chosen, players can select from a range of different ammunition types for the weapon.
New player models have been added with modular armor components, chosen by the player. Armor and Inventory are tied to the player's encumbrance system.

Take a look at OccupationCS's PvP Combat:

Download the latest and greatest here:
Install in Steam\steamapps\SourceMods directory.

The Occupation: Source Dev Team

- are always looking to expand and improve. We are looking for developers in the following areas:

  • Concept Artists - need to be able to draw some original yet realistic military personnel.
  • Character Modelers - being able to work from concept art to produce realistic characters is a must.
  • Mappers - should be able to create good looking, well optimized maps.
  • Prop / Environment artists - prop artists are needed to create various props to detail the maps. Notable props would be Humvee, APCs, fortification details.
  • Weapon modelers - should be able to work to a polygon budget to produce good looking and well optimized models.
  • Texture artists
Media RSS Feed Latest Video
Downloads RSS Feed Latest Downloads
OccupationCS: Source 4.1.1 RAR Install

OccupationCS: Source 4.1.1 RAR Install

Jan 21, 2012 Full Version 4 comments

Compressed RAR Alternative Setup. Extract to the "\Steam\SteamApps\SourceMods" Folder, Restart Steam

OccupationCS: Source 4.1.1 Full Setup Installer

OccupationCS: Source 4.1.1 Full Setup Installer

Jan 19, 2012 Full Version 10 comments

Version 4.1.1 stabilizes single and multiplayer play, implements the new Ballistic 2.0 SDK Libraries and implements easier in-game controls. See Detailed...

Map Manual, Example and FGD

Map Manual, Example and FGD

Aug 18, 2008 Guides 0 comments

Contains Occupation Map Entity Definition Word and RTF documents, the CobbleDepot Source Map and the FGD file

Post comment Comments  (10 - 20 of 1,718)
EnterpriseG Creator
EnterpriseG Mar 3 2014, 3:16pm says:

Resurrecting Ballistics, I am looking at new opportunities to implement the ballistics. I have been developing in android and released a game and am now looking back at picking up FPS development my true calling.


+8 votes   reply to comment
eldiablo1989 Jul 31 2014, 3:54pm replied:

I'll be honest what's in there already is pretty impressive, i'd focus more on optimization and cleanup at this point, maybe adding some more guns and getting a server up

+1 vote     reply to comment
VisplaneOverflow May 9 2014, 11:46pm replied:

Wow! It's good to see you back, this is probably my favourite source mod of all time, I always thought it had lots of potential - even though it's already a great game as it is.

+1 vote     reply to comment
Guest Mar 6 2014, 4:42pm replied:

will we see any chance of revival of this mod? i havent given up hope on this mod since trying it on release.

+2 votes     reply to comment
Spartan0536 Mar 5 2014, 12:06am replied:

I have been hard at work on making a ballistics overhaul for ArmA III. Its been a long time OccupationG, good to see you on here again!

+1 vote     reply to comment
WintryYapper24 Jan 16 2014, 9:55pm says:

dont open desrua mods on steam they dont work for some reason

+1 vote     reply to comment
Spartan0536 Nov 9 2013, 4:09pm says:

As an Occupation Source Developer (the one who reworked the ballistics for all the guns) I can honestly say that active development for this mod has ceased for the time being. It is unknown if we will pick this back up or not, I am trying to take the lessons learned from this mod and apply them to ArmA III with the help of other developers. The reason for the inactivity is that we started out with 5 developers and it ended up with OccupationG and myself, once my ballistics code in was complete by OccupationG my job was finished and all I did was beta test. This is one of my proudest mods I have ever worked on & I would like to thank everyone for their time and constructive criticism.

-3 votes     reply to comment
JoffL Creator
JoffL Dec 1 2013, 1:19am replied:

Until G backs that up specifically. That sounds like a complete load. I'm sure you're proud of your involvement but to claim you completely reworked the ballistics is pretty rich. G and I did rework the ballistics and we did use some of the information provided, but at no point do I recall you making around 200 scripts for all the ammo types. Scripts which were never included in a proper release.

And unlike you, I can't honestly say that development has ceased. Does it look like the project is alive? Not in the slightest. G hasn't been on Steam in almost a year. Last I talked to him was in May of 2012. Unless you talked to him past that point, it didn't boil down to just you and him. I stuck with this project from 2007 till then. So do me a favor and don't pretend to have contributed more than you did.

As for a more official statement, yes the project does not look like it'll be returning to life. I've sent G a private message and am awaiting a response. It is very likely he has moved on from attempting to develop source mods and gone to android app/game development. Was fun while it lasted.

+4 votes   reply to comment
XenonFORT Dec 15 2013, 9:36pm replied:

Well thanks to everyone who made this mod awesome. I hope at least we can get the last version of this, even if it a development one.

Thanks for the time used to make this great mod, and I hope it will get the attention it deserves.

Good luck, and have fun :).

+3 votes     reply to comment
WilliamTheGameCritic Nov 2 2013, 5:43pm says:

I think this game, if given a good budget with good employees,
may become a very fun and popular intense battle simulator. Hopefully there will be more to come with this game. I will be watching for updates :)
EDIT: The game is already very fun, just needs a bit more tweaks and hopefully it will become more popular :)

+1 vote     reply to comment
AyCe Aug 24 2013, 6:30am says:

Are you guys still working on it, taking a break or do you let this project die? I'd like to play an updated version of this.

+4 votes     reply to comment
WilliamTheGameCritic Nov 2 2013, 5:35pm replied:

Same here, also do you still play the game? Because it would be great to play with humans every once in awhile :D

+1 vote     reply to comment
arbiter110 Jul 13 2013, 2:42pm says:

Please help i open steam and click on play but nothing happens

+1 vote     reply to comment
marksman52 May 15 2013, 5:12pm says:

What ports need to be open to host this?

+1 vote     reply to comment
Nigissimo May 18 2013, 7:28am replied:

try the default hl2 deathmatch one

+1 vote     reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Half-Life 2 Icon
Ballistic Software
Send Message
Release Date
Released Aug 31, 2009
Mod Watch
Track this mod
Community Rating



286 votes submitted.

You Say


Ratings closed.

Highest Rated (3 agree) 8/10

Needs to be more stable and make the in game menu easier to follow :P

Apr 22 2011, 6:49pm by PieM0nk

First Person Shooter
Single & Multiplayer
Embed Buttons

Promote OccupationCS: Source on your homepage or blog by selecting a button and using the embed code provided (more).

OccupationCS: Source OccupationCS: Source
OccupationCS: Source
4,413 of 23,036
Last Update
11 months ago
640 members