I prefer the Aug along with:
Stopping power pro
ninja pro or scrambler pro
That and split between a rifle using
Bling pro or scavenger pro (for claymores)
Cold blooded pro
If using bling pro I equip with a throwing knife.
Key point doing this game is patience. By that I don't necessarily mean camping same spot all game, I mean don't run carelessly around like a chicken with your head cut off. People are getting killed the easiest doing this thinking they have Juggernaut on. Move quickly but stop on occasions, be aware of your surroundings and be patient in one spot to pick up action to your advantage instead of being in someone else's crosshair.
Government - If you think the problems they created are bad, just wait until you see their solutions.
Screw being normal