Halo: Spartan Assault features 90 mission-specific Assault Ops in total, three for each of its 30 solo missions. The cooperative Flood Missions featured in the Xbox 360 and Xbox One ports of the game do not include Assault Ops.
Operation A: Umbra
Operation B: Tempered Shield
Operation C: Monolith
Operation D: Captured Chance
Operation E: Frostbite
Operation F: Hydra