i used to go head first into defeating high level bosses(some were upto 4 lvl higher than me, lol) i used to find dragon like stalker things hard at first. mostly because i was underlevel and i didnt carry any shock weapon to counter their shield. and i am sniper. then i had a hard time in bloodshot stronghold. thats when i figured out i was underlevel since all the weapons i were getting were of much higher level than i was at, and hence i was unable to use them. i have all my points to the sniper tree in my assasin skill thingy.