The year is 2037. Ash is the leader of an elite organization of soldiers known as X-Squad. One day he receives a cryptic message concerning an experiment known as Project Medusa. It appears that the head of the project, Dr. Bianca Noble, has been kidnapped. Ash and his three companions must discover the truth behind the experiment, and find out who was behind the attack.
X Squad is a third-person 3D squad-based shooter. The player directly controls Ash; his three companions are controlled by the AI, but the player can issue general orders to them. Ash can crouch and roll to evade enemy fire. The gameplay is predominantly action-oriented; Ash and his friends have to deal with enemy soldiers, automated guns, and boss enemies. Other tasks are usually confined to hitting switches in order to open doors.