Ok, so I was playing some Call of Duty 4. When I got my dead silence perk. I suddenly started working on my MP5 to get a silencer on it. So when i got my silencer, I equiped it onto my MP5 and started playing on Wet Work....HOLY CRAP! I never thought stealth was so AWESOME! I got 40 freaking kills and only 3 deaths!!!!I'm going to start working on my P90 and AK-74 NOW!!!!!

Or my already Red Deserted M16...

EDIT: I tried the M16 on the level where you first get attacked by dogs except the multiplayer version. 42 kills. 4 deaths.