Hope you're enjoying your new loot. Anyhow, here Are some links you might find useful while you farm for new weapons and such. These are in this this forum as well. Google the weapons, shields, grenades, etc. look up what they can do, the best prefixes, and which character would benefit most. Also lookup builds particularly your commando and try the different, shields, coms, etc since you should have most of them. Glad to be of help and looking forward to playing w/ you again. Have fun man!
Guide to using the avenger smg.
Try this 63 build w/ your legendary soldier com and see if it works for you. It's sort of generic maybe not the best but try it out and go on a mission. You have longbow & double up so you can throw the turret further that the baddies might focus while you concentrate on killing them plus it shoots slag bullets/rockets.
Remember some builds need to be reset for raiding bosses or just general gameplay or mobbing.