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.
I don't like the default voice for Faith the medic in the Valve edition of Alien Swarm. This is a very simple mod that makes her voice a little higher and, in my opinion, better sounding. Most sound files have been increased by +2 semitones. A few have been increased by 3 or 4. Install directions are packaged in the .zip.