For those of you struggling to win in iron banner try out this super scrubby tactic I had used against me and my friends. Its really simple. You'll love it! Step 1 create a fireteam of 6 titans with defender. Have all wear their saint 14 and their most prized shot gun. Step 2 sit on flags inside bubble with shotgun out and wait. Step 3 when an enemy super comes in to kill you and bubble, jump in air and land on them and kill them. Tahdah! You've won.