warrior vs hunter duel problem :S

Hey there, I'd just ask if anyone has got a nifty trick for this, I've got my warrior with 31/20/0 build, and doomulus prime (or what it's called) but I can't realy do anything to a hunter, becasue he's using this tac:

frost trap -> go behind frost trap -> shoot -> run away -> repeat

I can't remove it with insignia of the alliance. Last time I duelled him I only managed to take about 5% of his HP.

A perfect playing Hunter is unbeatable for any equipped/skilled Warrior.

Attempt to go around hes frost trap, go to about a 90 degree angle and charge at him, make sure you put that thing which makes him go at 50% speed, (sorry never played a warrior) on him.

Another tactic is that once in the frost the hunter may not always have enough time to run away from you, so once out make sure you do charge as soon as possible.

Aside from this I am not really sure what else to suggest, just make good use of fear when you can.