An epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your attack using an unlockable arsenal of weapons with countless loadout configurations against a wide variety of aliens. Blaze your way through an overrun, off-world colony, eradicating the alien infestation in environments ranging from the icy planet's surface, to a subterranean lava-flooded mining facility.
A beta of my Alien Swarm campaign, Housle cleaning. Please list bugs in comments. TO INSTALL: go to your alien swarm folder and drop the unzipped file in the folder called "addons" *** YES, THERE ARE ERRORS *** (and another kinda new npc. have fun.)