Immerse yourself to this thought:
I always thought that a cool transition would be a team of 4v4/8v8/12v12 in a middle of a multiplayer match fighting it off. Out of nowhere the games stop and the announcer sounds an alarm that the ship is being attacked.
Groups of Covenant or Prometheans storm in and the two teams in the multiplayer match instantly transition and turn to fight off the forces. Its like one moment Spartans are competively fighting each other and moments later both teams of 12 turn to fight the in attackers.
Hell that could be a firefight concept next time. Instead of being a simulation, its being raided and you’re stuck in the simulation map fighting off real enemies.