Amazing map! Some thoughts for a possible V2: Put a closed-off room in the tower filled with fusion coils. When the bomb goes off in Assault, it will ignite the coils causing a bigger fireworks show, and ensuring that ALL the propane tanks ignite (which sort of broke the illusion for me when only one or two blew). The rocket spawn is WAY too easy to camp. Do something to prevent people just sitting there, protected by the shield door. The warthog really doesn't have much room to move in, and really doesn't even have much to do. I suggest you get rid of it. But really, this map is MIND-BLOWINGLY AWESOME. Keep it up!
This map doesn't look to competetive more aesthetic but however how you built that tower looks amazing and you could probably get quite a few fun games of CTF on this. 4/5