Dslyecxi posted another video in the BIS forums.
ShackTac had its first MP ArmA session on Saturday, and this is some footage from it. This particular mission involved ~40 human players, organized into three squads, fighting against ~250 AI opfor utilizing various enhanced AI group behavior scripts. It was a hell of a lot of fun.
ShackTac 40 player coop
View this coop mission video taping streaming in our streaming video section
Download it from here
A small "teaser" to see what you will be viewing/downloading can be found here