Plain and simple, some ideas I feel would enhance the experience (Assuming Firefight will be in Halo 4):
-A team mode where one team plays as the baddies (Flood, Covenant loyalists, whoever we’re shooting at in Halo 4). There would be a mode where:
'The opposing team starts off as superior units (Like the Sangheili as a past example) and has influence over how the enemy A.I. will behave. As well as:
'A mode where the opposing team starts off as lower units and after accumulating enough points gains access to more powerful units. (Similar to Gears of War beast mode)
-I also feel an arena styled map would be fun. Like literally an arena with waves off bad guys coming out from spiral pits or caged archways. Something to that extent and very self aware.
-Pick a faction to fight. Each faction is different, picking Spartan gets you some UNSC. Picking Covenant (or equivalent for new game) gets you a cast of different creatures. Picking Flood (or equivalent) gets you yet another cast of differen creatures and allows you to take over new units if you play as an infection form.
Nothing special, just things I’d like. Firefight is a gametype that offers very little in my opinion, so adding in things like this would extend it’s life a bit, perhaps.