Here's a suggestion that I think is pretty good:

Make a Hardcore Infected. No scavenger(you get ammo from fallen teammates guns), No UAV to show the last survivor, (rest is the same as in normal hardcore).

Then make Private Match modes on Puplic. Reason:Nobody plays them, and I wanna try Juggernaut and all the others.

And at last patch the MP7. Its too good.

People who just run around with akimbos should be shot between the legs. Extremely annoying.

Most of the time I see these people in gillie suits. Most likely have a sniper as their primary, realised they can't actually QS so they run around with akimbos instead.

I would have liked to have had an ability included that would reset the timers for throw back grenades which could have possibly been unlocked with blast shield pro or sit rep pro.

I always try to do as much challenges as i can,at the moment im trying to do the "hot potato" challenge and its hard enough trying to throw it far enough to not kill you,never mind killing an enemy.most often the grenade is cooked and the animation to throw it back is too slow.

Also possibly something that lets you no how much kills you have in current killstreaks would be nice.

Example being,yesterday i thought i was on about a 15/16 killstreak and kept playing the way i do which is aggressive.However it turned out i was on 22,had i known this i might have played a little more cautious,happened quite a few times now