Then when you are being revived just spin around in circles. It still throws of a scoper. Or even better when one team member gets the res have another run or jump in front of them to mess up the sniper. Unless their sniper rifle has zero aim assist then the person distracting will pull the scope off of the revive. I would know it happens to me all the time. If it is truly your goal to stop a res snipe then it will happen if you implement the right strategies. Yeah sometimes it wont work because the opponent is skilled. That is just part of the 3v3 game. Dont hate it, just learn to master it.