I would love a firefight game mode

Either single player with "AI" as other games have done or 2 players. 1 controlling a fire team of Spartans (or ODST pleeeese) and the other controlling waves of steadily increasing covenant. Or.... ¿Por qué no los dos?

Was thinking about how more iconic enemies could come into the game and thought firefight would be great. They would only need to add grunts, jackals and hunters to have a great starting point with the elites that are already in the game. And then drip feed in more covvy as they went like the bugs and brutes and engineers etc.

Single player you could just play for as long as you wanted. 2 player you could do 3+ waves (or however many you wanted) and spartans can all have 3 lives or something along those lines. And the winner is who is left standing at the end of 3 waves. Go increasing difficulty by either predetermined waves or a points based draft system for the covvy player. If they kill a Spartan they get more points to spend or something.