America's Army 2.5 Assist can have add of Data files for playing the Game. There is about 10 AddIns for This Games to could Get and use for playing and the Addins is for to get the main AddIn there is for both Linux, Mac, Windows and WineMac. The first Addin to use is the System Addin and then the Help addin. System Help Textures Maps Sounds Music Animations Movies Karmadata Briefings Staticmeches The is there extra addin files like maps for ready to next version of version 3.0 or AA3. Most of this game can be play om Linux, MAC and Windows as Client player, and the is a Server version too for both Linux, MAC and Windows. http://aao25.com/