I soloed BT and esseles NM on all my toons lvl 11-13, using the boxes and walls avoid and interupt hard hitting attacks, i had to zerg the first boss with my gunslinger since he spawns unlimited adds took him to 30% then came back and killed him again when he was fighting the republic npc's there, rest are easy and even easier if you have a healer companion.(posted this like its a big accomplishment:p easiest thing ever lol.)