Originally Posted by Timber_Ghost
Take a herd of rental players with you. They make for great distractions and will listen to you since they automatically label you as a sniper. When they get engaged in a firefight that is your chance to flank. Move past your opponents and shoot them in the back. Just don't assume the renters will remember that you are on their team when you try to regroup with them.
Turn your back to them and wave them forward after you eliminate all the opponents in the area.