Sniping gotcha down?  Always ambushed by the enemy no matter how hard you try?  Well, we have found an awesome weapon package and perks combination that we think everyone should give a try.  After struggling in Modern Warfare 3's multiplayer, we combined the M4 Carbine with two attachments (the red dot sight and surpressor) and three perks (sleight of hand pro, assassin pro, and stalker pro).