SET UP A CORNER OFFICE
Complex Says: Because the multiplayer maps are so much more congested, every building is little more than a collection of corners that you can camp in like an a-hole. Bonus points if you equip Ghost Pro so that enemy crosshairs don't even turn red when they sweep over you. What's so amazing about this strategy is that people HATE IT SO FUCKING MUCH that there are countless videos of people hunting down corner campers, but precious few of people bragging about using it. Do it right, and you may get lucky and capitalize on one of those wonky hit detection boxes to help compensate for your execrable, cowardly a-hole tactics. Have at it!