This is my least favorite vanilla map, because of the constant stream of Gammorean guards who 1). don't count as kills, 2). can one-shot anyone except heroes (who are instead 2-shot). If the game engine decides you're not going to win this map, then there's not much you can do about it. It's usually a battle of attrition, and you can just forget about capturing all the command posts. I've found the best strategy to employ is simply lobbing grenades down that stairwell, run down to collect ammo/health, and fall back to the top. If you play through the entire campaign mode and earn all the power ups, then it's a lot easier, but it's still no pushover.
