I'm tired of getting two shotted by everything but the weakest enemies in grandmaster portal missions. Something spawns in behind you and you're dead before you can react or find cover. At 400 power I thought maybe I just need to suffer until I level up a little more. At 450 I don't have any problem with damage. I've got a fun arc build using ionic traces with quickly recharging grenades, but a couple of minotaur snipers can ruin my day before I even figure out they're there. There's not even an armor or shield customization system or linear progression of increasing stats like health. It doesn't even change until you get to 100??? Whose stupid idea was that? What am I missing?