However the concern still stands, do others benefit from your stacked debuff? If it does it is easily understandable that multiple 5 stacks of the debuff would not combine so one gunnery commando would be necessary, otherwise the bosses armor would drop so low it would be cake walk. You add on top of that mobility has a tendency to add to your ability to survive longer, or at the very least keep your health up so healers have more time to focus on tanks, melee dps and other healers. I don't know about you guys but the idea of constantly switching my skill tree to match what I am about to do, wasting my time and credits on a regular basis just tires me. I bet actually doing it would piss me off.