Bad halo corps

SO I was thinking while playing Haloep3 take Bad company 1 only add more humor, give it a strips or down periscope spin, then set it in a halo like setting. Then Make halo corps a team of nerds, half of which are less tech and more muscle or looks(pretty boys) and the other half more nerd looking they are a bit slower but treat their equipment…to well IE load fast do a tiny bit more damage.

Also maybe implement a new weapon learning thing where you need to fire it 100 times(or 1000 for rapid fire type weapons) before you are at 100% proficiency with it.