I'm not positive if this is a "feature" or if this is a bug. Loaded up starcrossed and could not bust the bubble on the two barriers at the beginning. Confirmed my artifact mod was in fact using sniper anti barrier. Went to the shooting range to test this. If I hit the bubble anywhere other than a crit location it would take two shots to bust the bubble. If i hit the crit it took one shot. I pulled out arbalest and it took one shot anywhere on the bubble to break the champion. Arbalest is doing less damage then the new sniper "Something Something" too but breaking it in one. It would seem to me if you're using special ammo on one shot like a sniper it should easily bust that bubble. Maybe it wasn't caught last episode because the rocket pulse was shooting three shots at once so it felt like 1 shot instead of two? It makes using any sniper on champs just unrealistic especially with slow reloads or small ammo magazines.