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The co-op missions are 5 different missions that require two players and are only available in the Xbox 360 and Xbox One versions of Halo: Spartan Assault. The missions are UNSC training simulations against the Flood in case they should return.
- Co-op 1: Checkpoint
- Co-op 2: Holding the Fort
- Co-op 3: Structural Integrity
- Co-op 4: Transmission Interrupted
- Co-op 5: Power Net
- Main article: Machine Pistol
Machine pistols are functionally similar to SMGs and are always found in pairs, but are less accurate, less powerful, and have less ammo. The weapon is mainly useful for dealing with hordes of infection forms and is ineffective against combat forms.
Repel creates a temporary ring of gas around the player that prevents Flood from crossing.
Teleport teleports the user directly to his or her Spartan teammate.