it seems in the beta the only people i can get the monsters to hit is my monk and rogue they ignore the warrior all together. is a warrior a poor low level choice?

I believe you must deal more damage with the fighter if you want the enemies to sse your fighter as the larger threat. Then they will attack the fighter.

tanking is tough in this game. you need at least 2 tanks imo. I send the fighter in when everyone else is invisible, then have your second tank pop out and pick up the mele stragglers. Then when the other 4 members go un invisible the archers ALWAYS demolish my squishies. so if you target the archers, it will tell you what character of yours they are aggroed to (the character they are aggroed to's hit box will blink when your mouse is pointed on the enemies hit box). 99% of the time all archers will pounce on one character. If this happens, while your tanks are taking all the mele fighters, run away with the archers target and line of sight the archers until they run close to your tank. Then proceed to demolish them all with AoE damage/debuffs. I usually start with blind and daze for the archers, but check their defenses, and act accordingly. That is the strat i start with in pretty much every fight. The only thing that makes me change it up is plague of insects, or enemies with a debilitation applied to their mele.

 

also popping potions for the first 2 tanks is very important because they will take A LOT of damage while your healer is invisible. every DR and deflection point will matter

Get in a choke point, wait for the fighter to gain a little aggro, then send in other melee classes.