Xalek is tank
Well, this is pretty much all wrong.
Sergeant Rusk is not a tank (does not have any tank abilities like taunts, and can't use shield.)
Also he does not use sniper rifle.
His weapon is Assault Cannon. Like a dps commando
All Fixed Thanks Eternalnight.
Those were actually copy and pasted from one of the other websites. But I should have known about Rusk since I have a 50 Guardian. lol