On the planet Thera in 3104, a new type of virus, turning humans into zombies, threatens to eradicate mankind. Last defense against this scourge, the SAS, some highly armed and trained special forces, were sent on site in an attempt to counter the threat. Choose your hero from 3 available classes (tank/heal/dps) then plunge into the heart of the action through seven missions in single player and 4 multiplayer campaigns. A thrilling shooting game with an impressive amount of weapons and armor pieces.