Hide somewhere near a choke point (preferably near a heavy ammo spawn location) , and hilt people (2 hit kill). When heavy ammo drops, switch to your primary or secondary, and kill anyone between you and the heavy. Get heavy, go for a kill streak. I'm not great at Pvp(I'm getting better, though) but when I was getting my sword last month, it took maybe 5 or 6 matches using this strategy. Just don't get frustrated. You're gonna die... A LOT... But the exotic swords are worth the aggravation