Hello guys, thanks for the reply. After 2 hours of research, which is hard to find!
According to some sources, accuracy is pretty good. Once you exceed over 100%, you will begin to have a chance to ignore enemy dodge/parry/block etc.
"Accuracy is improved by Accuracy Rating, and determines the chance for our melee and force abilities to hit the enemy. After a certain breakpoint (when 100% hit is achieved), it instead reduces the likelihood of deflection and resists. If we do not have perfect Accuracy (which seems likely), then Accuracy Rating will be the most valuable stat on gear until we reach the breakpoint. After that I'm inclined to believe we will be better off stacking other stats such as crit and power/tech power, unless there is a small universal amount that helps with boss fights." - Sol.
"Accuracy - Even though you start with a 100% base accuracy for your special attacks, every bit you go over 100% reduces the defense chance of your target. Right now, it looks like same level enemies have a 10% defense chance, meaning you would need 110% accuracy to guarantee your abilities will land." - Captain Malv.
So Medic armour is definately a nono now for concealment operative, now... its ether Field Tech or Enforcer... still deciding!
Keep up the suggestions guys! Thanks!