The major additions include the AK-47 assault rifle, which beefs-up the Commando Perk through heavier hitting power in semi and full automatic fire modes, The Katana which operates as melee weapon that combines speed, reach and cutting power, and a brand new map: KF-Foundry. This map is set in a Horzine manufacturing facility, tucked away in an old steel foundry. Multiple levels, strange machinery and molten metal all serve to create an eerie and frantic location to fight off the specimen hordes.