Defence Alliance 2 is a tf2 mode for killing floor, a total conversion of a 
survival horror co op shooter to a class based tactical shooter. Two teams play in an attack/defence scenario, in which attacking team completes its objective by destroying the targets and defending team defends the targets. Defence Alliance 2 features 6 classes namely Medic, Mechanic, Rocketeer, Machine Gunner, Sniper and Rifleman.
This is not it, you can also setup your very own turrets such as cannons, miniguns, and rocket turrets. Place ammo boxes on the map for your friends, use rocket launchers, and EMP grenades to destroy enemy turrets as well.
In addition to all Defence Alliance 2 also features a co op gameplay mode called Co op Specimen Survival.
Where you and your friends are put against waves of experimental subjects, you can use everything from turrets to land mines but have limited number re spawns to defeat these waves of specimen.
How to Setup/Play Defence of Alliance 2 Non Steam
Step 1|Download and Install Killing Floor
First thing first, you need to install Killing Floor Non Steam edition. You can download it from the link below.
Download Killing Floor Steam GTA Repack
Download Killing Floor Clean Install-Part1 & Part2
Step 2|Update Killing Floor
Once you have installed Killing Floor, update it to the latest version. As of now it is {v1011+}, you can either download the full patch to v1011+ or an incremental patch to move from v1011 to v1011+.
Download Killing Floor Full Update to v1011+
Download Killing Floor Patch v1011 to v1011+ Rapidshare or Mediafire.
Note: Keep the game updated to latest patch.
Step 3|Patch Killing Floor and Play With revLoader
Download and Install KF RevLoader v1011+ to your Killing Floor directory, run the included bat file to clean up old revLoader files in case you already were playing the game and updated to v1011+ now. In any case starting the bat file will clean up the installation so its recommended.
Go to your Killing Floor directory and open rev.ini with notepad to edit it. Find “PlayerName” and change it your in game nick, save and exit. Create a shortcut on desktop to “KF_revLoader.exe” and start the game through it.
Download RevLoader v1011+ Rapidshare or Mediafire.
Step 4|Download and Install Defence of Alliance 2
Now you need to download Defence of Alliance 2 and Install it in your Killing Floor directory.
Download Defence of Alliance 2
Step 5|Start Defence Alliance 2
You can either start Defence Alliance 2 with batch file or by creating a shortcut to “KF_revLoader.exe”.
-Play Defence Alliance 2 via Batch File
Go to your Killing Floor parent folder and create a new text document, rename it to “Play_DA2″. Now add following lines of code to the text file.
@echo off
start KF_revLoader.exe -launch System\killingfloor.exe -mod=DA2
Change the file extension from “.txt” to “.bat” and double click the “Play_DA2.bat” to play the game.
-Play Defence Alliance 2 via RevLoader
Create a new shortcut on desktop to “revLoader.exe” and rename it “DA2″. Right click on this newly created shortcut and go to its “Properties”. Now in the target box, you will see something like that:
"C:\NoSteamApps\common\killingfloor\KF_revLoader.exe"
Replace it with following lines of code:
“C:\NoSteamApps\common\killingfloor\KF_revLoader.exe” -launch system\killingfloor.exe -mod=DA2
All you need to add is this code “<space>-mode=DA2″.
Note: If you won’t add any “space” before “-mode=DA2″, it may give invalid shortcut error.
Enjoy…
