Commands are a very useful tool on this level - use 'follow me' at the beginning so that most of the Rebels exit the Rear Flank in your direction. Then you can throw a grenade to blow some of them off the second level to capture the Courtyard. This CP was almost retaken at the end since I wasn't able to get many Rebels down there. Spam the 'follow me' command so that Rebels follow you to the Walkway. Then use 'Hold Position' once a few are in the CP radius so that they stay there, while you move on to capture the Forward Flank. The concussion grenades are useful in distracting enemies while you quickly move past them. You'll want to save your thermal detonators for the groups of enemies spawning at the Forward Flank.