In the Iron Banner, everyone is forced to play control. But the problem is, not every CAN play control. What I mean is this, if I'm defending B and someone who doesn't know how to play control thinks it's a good idea to capture all 3 zones and the spawning is swapped, I get killed, we lose zone B and I'm stuck getting shot at because the enemy now has the grip on B and C while I'm getting killed as I try to take back B from there strong grip because it's easier to control.
I suggest adding clash to iron banner and it would be an option. So when I press A or X on iron banner it gives 2 options, clash or control. Yes, clash tends to have shorter games so people will play it to level faster, but to fix that, add more points required to win.