Okay whoever said don't rush you're completely wrong. If you want to be really effective put overkill and get like a M16 or AK47 silenced and put the second shotty. Just rush immediately and you'll get at least 1 kill per round. And when you get good at the rushing, you get on average 3 kills a round. You might die a lot, but you can't lose XP. Rush to their spawn point but try and stay away from grenade hotspots. If you can't wait like everyone else and then rush. This method works especially well against noobs and it helps because once people get settled in to their spots on SnD there are so few places you can actually go without getting sniped or taken out. Another thing, use everything to YOUR advantage. For instance the bomb. If you see the bomb dropped don't go put claymores around it or anything just find a good spot, and no matter what STAY there. Keep in mind they HAVE to get the bomb or they lose, unless they kill you. Most people will start to panic at the one minute mark once it says time is almost up, so that's when they will forget about you and go directly for the bomb even if that means exposing themselves greatly. Also on offense. Keep in mind that most people will stay at one of the bomb sites. Use that to your advantage. Use UAV's to your advantage. If you don't have UAV jammer set a trap. If you do have it you'll just have the element of surprise. Also, noobs on YOUR team. Use that to your advantage. Everyone is looking for the easy kill so just flank their team and once you're in behind golden. Anymore questions about tactics PM me. I usually don't help people out like this because I think people should learn to play on their own and develop their own style of play. So please +rep or thanks me because I typed a long response. Lucky duck.