A close call with a Class-C comet has left the Earth decimated by meteors. But beyond the devastation lurks a more sinister threat – alien spores, which are mutating living creatures into hideous and lethal creatures. Eventually, humans start to mutate, and it’s here that the player is called to arms as part of a global task force, sent to wipe out the alien threat.
In single-player mode, the game is a heart-in-mouth action-fest, combining moments of all-out-action with tactical planning as players command a two-man strike force. The game utilises sophisticated enemy routines, with complex sight and hearing algorithms combining to create highly intelligent adversaries. Missions need to be tackled in a number of ways – guard routines need to be studied and surveillance disabled before a successful strike is launched. The buddy system allows players to specify timed attacks so sentries can be taken out simultaneously. Co-ordination between the two team-mates is vital, and players can directly switch between soldiers as they wish. Alternatively, commands can be issued to fellow soldiers with key strokes, leaving players able to concentrate on their own actions.
Multi-player modes introduce advanced objectives, as players compete co-operatively or against one another.