You got fusion rifled, get over it, the lvl 25 didn't miss a shot and you missed yours, you deserved every bit of that death. Lvl 30 doesn't make you an invincible god on the battlefield, it gives you a slight advantage against lower levels but that's it, and that's how it should be. Don't expect to take all 7 fusion rifle shots to the face and ever survive, regardless of the level. Try to go into iron banner as a 25 then try again as a 30, there is 100% a difference.