My build for commando at level 41
Force hammer-6
Neutronic stomp-1 its just to knockdown
Vigor-4
Singularity-6
Graviton slam-6 Very important slows enemy down by 70% at level 6
Increase Mass-0 i dont put any cause at commando u already have alot of armor and it cuts some of ur dps when u use this skill
Energy Resevoir-5 Important b-cuz coms always lose mana
Gravity well-0 I know it does Aoe damage but you wanna bring the fight out , not in
Nebula-0 it doesnt do much if ur stuck from an op or eng so no good
Growing Rage-6 Gives 60 crit very good damage for pvp and pve
Back breaker-6

Also if you dont already know, if u use neutronic stomp or singularity and then use back breaker, it gives a combo which does extra damage to enemy.

I know people dont know me and im not famous like Chinesekid, Auronn, Ghost or anybody else but its my build
COmment if you want and like if it helped
THANKS!!!