Yeah I saw that. Curses :P. I'll lay a few booby traps then. If it appears they are about to reach the reactor, Kyros will enter the fray to block them.
The civilians aren't allowed to fight at all, even if ordered to, says the OP. Either way, 2 padawans can probably hold their own relatively well against Matt and his Padawan. 1 Knight might have difficulty crowd controlling them and preventing them from getting to the reactor, that's where you'd come in.
Just a heads up, not sure if you're editing it out now or not, but Jiang said no Demo charges. If you want to stay in your sniper position, perhaps I should go with 2 Padawans to hold off the Jedi.