Is there a way to change the game settings so everyone has to be an Elite or everyone has to be a Spartan? I can't seem to figure out how to do it. I want to be able to do an infection gametype where the zombies become Elites. If anyone knows if this is possible then can you please help me out, thanks.
I don't think that's possible. I'm pretty sure you can only be an elite in Slayer and Invasion, and have Spartan vs. Elite in Invasion Slayer. I wish you could be more flexible with the gametypes.
As far as I know, the option is there in all gametypes, but a bug prevents it from being visable. I hope Bungie is working on it.