MULTIPLAYER COVENANT MODE!

Who thinks it would be cool if there was a covenant mode? Spartans Vs covenant on matchmaking.
covenant classes could be:
sniper jackal - beam rifle and carbine but no shields. Storm jackal - when pressing armour ability button the shield covers whole front of body,when not they can fire with there plasma pistol with unlimited ammo. The shield is equivalent of overshield but unprotected body just health.
Elite- storm rifle and plasma pistol.
Grunt- no shields with needler and plasma pistol + double points per kill.

Spartans could have classes like reach:
Air Assault - jetpack, assault rifle, magnum
Recon - hologram , dmr and magnum
Operator - no armor ability, shotgun, magnum
Medic - regen feild, battle rifle, magnum.

It could even be adapted to create a proper invasion mode!
Ordanance could only be corresponding race so covenant would get:
plasma grenades, gravity hammer, energy sword, beam rifle, fuel rod gun, concussion rifle
Human would get: frags, sniper rifle, shotgun, rocket launcher, oversheild

post if you have any tweaks or have a different, similar idea