this mission made by Clan Centurions
for ArmA. It's available in singleplayer, coop and adversarial mode.
Quote Le_Cardinal :
SP & Coop: BlackHawk Down style mission. Features:
* Dynamic mission: the gear you have and the number of foe depend of the number of players
* Random objectives : 3 kinds of random objectives
* Secondary objectives : you don't need to fulfill these objectives, but it will make the mission much more interesting.
2 teams with different objectives, from 8 to 60 players. No respawn // You can either play militia or special forces