So many people here that have no idea how PvP is in this game.

Even with purify, or being a tank or whatever, this will DESTROY you. If it doesn't one shot you, the next OGCD nuke will.
Just looking at MCH, they'll pop everything they have, and pump you full with Between the Eyes, Gauss Shot, Ricochet, a push back, stun, Lead shot and if somehow you're still alive, Hypercharge will cripple you for the next person.

Did I mention this all happens within 10 seconds?