I think U.R. is even good in PvE but You need a short range scope sniper and anything on heavy but not a SWORD!!! Sleeper, good machine gun,good rocket launcher but not a SWORD!!! I know that some people LOVE running with swords and U.R.. You already have a short range weapon so You don't need swords.
Use defender no backup plans and get force barrier to maximum duration.
Max out melee regen and you have got unlimited force barrier :-)