I think it would be hella cool to fight the UNSC in firefight as well as promethians and the fake covenant. Would be awesome. Last round spawns marines tanks and warhogs maybe. Something I was just thinking about, and the thought of the mighty UNSC up against spartans would be sweet. WZFF already has no immersion so I don’t see why not. Also, there is already a Mantis boss.
You’re right, since it’s been shoved into our face that Warzone Firefight is just a simulation, I don’t see why we can’t fight other types of enemies. Why not put us against insurrection forces? Or Spartans? It would add some nice diversity into the gamemode, which would be very much needed and appreciated. Or, since we’re at it, they could even giant tentacle monsters?
When everything is just a training simulation, anything is possible.