Want to beat a commando gunnery, simply interupt and/or break LoS. Problem is a lot of players are...well honestly, stupid. In the scope of things, scoundrels are simply flat out stonger, with more cc, higher damage and escapes. Whether you are playing WZ or open world pvp, it's an easy choice -- unless you think you will only be fighting clueless and undergeared players. My Commando is rank 50 something, with full champ gear. My Scoundrel is rank 30 something, but already way more useful (I like my commando more for PvE tho). I've yet to try the combat medic line, but I plan to give it a shot soon. Anyone that says different either doesn't know any better yet or is campaigning to retain stealth class ownage.