User blog comment:Pedro9basket/Battlefield 3 Pre-orders matching Call of Duty: Black Ops sales/@comment-66.188.54.172-20110727034551/@comment-2224289-20110727150719

quick tip: when you kill a enemy sniper, grab his kit, use his motion sensor and then switch back to yours and you shall save much more motion sensors! But only do those no scopes in SDM, you don't help a thing doing that on Rush or CQ