few general pointers on warriors:
-stick in a group, you're at your best with a pocket healer.
-learn the jumps to perfection, lose 1 step on that fc and its GG.
-choose your class wisely; Nelfs get double charge, gnomes can remove frostbolt/wing clip/conc. shot snare, humans get a short trinket.. really think hard about what you wanna do, before picking your class, a nelf warrior is silly if you're going to FC 90% of the time, there isn't much smelding to be done when holding a flag :j
-potions are fantastic, engineering is your friend, try to keep yourself re-supplied with all the buffs you can!
-when you get a charge on a hunter, he will either A: scatter you, which you should trinket, B; wing clip you, or C: disengage right away. now if he clips you, hope to god theres some Line of sight nearby, or that you're a nelf and can get a smeld-charge off. if he disengages right away, jump in the general direction he is disengaging, you will land closer to him.
-duel, duel, duel.
-learn how to weave in and out of a priests' fear zone.
-this may sound silly, but, be a coward. you're no use dead..
-group queue, use voice chat. your class has no stuns as a baseline, so queueing with competent mages/rogues/hunters/paladins/etc and using voicechat to coordinate CC and interrupts can be quite game breaking!
-rather than running around an earthbind totem, use your thrown. if you hit it in melee, you'll still get 1 pulse which will put you behind. charging it will also give you a pulse, but if you stay slightly out of range and use ranged, you can run right by it :j also, it will clear it for the rest of your group.
thats just.. off the top of my head :j, good luck!