What's being done about warzone performance? Specifically server lag (in which my melee attacks are mysteriously out of range, or characters warp across the map), and the slightly less frustrating feature of being unable to chat in /ops or see all players in the unit raid frames?

Mine just finished Chapter 2 at level 29 (Duo'd with a same level Sage for the last couple fights, we couldn't land hits on the lvl35 'bosses', but could stay alive forever [kinetic]!). This toon is a reroll on a PvP server from one of the dead PvE servers (pre-transfer). I'm curious what your reasoning is for enjoying this class over the other 6? I know, I'm enjoying the survivability and the stealth.

I see what you did there....

Merc/Comm Healers: Can heal through a beating. Sorc/Sage Healers: Have the run away utilities. Op/Smugg Healers: Have a blend of the two, but those tools are lacking.

Doesn't Commando/Mercenary have the mirror problem with staying within that ~60% range with heat/ammo management?

Maybe you need to repair your gear at the nearest vendor?