I recommend playing slayer pro. I used to like infinity slayer, but now its rather stale. Sometimes pro feels a lil like what halo 4 should have been.
really give it a whirl i enjoy it much more. I dont get my light rifle but i can deal. I think they shouldve stopped at personal loadouts. All the ordanance drops and instant respawning is what turns me off from infinity. also adding the radar into pro would be welcome. I find killin folks so much easier without it. the radar adds the awarness that others may not have.