MOTD sez 15 mins on AA and VH, I believe. Haven't put a stopwatch to them, but they sure seem to be coming up quicker than that ... same for town buildings.
Sure makes field capture a challenge. It takes a fair amount of cooperation and coordination even to take a lightly-defended base. Maybe that's not such a bad thing.
Disagree about the AA. I've taken hits in a zeke and lived to tell about it. Even got close enough to a fleet to drop a torpedo from a Kate -- taking multiple pings -- and made it back to base alive. .5 lethality seems to be just about right.
Flak is a different story. The schwartzenflakkenpuffen often seem to get me at impossible ranges/altitudes on this particular map. Perhaps flak is a map-specific setting that gets overlooked or can't be adjusted? I believe the manned 5-inchers on ships model proximity fuses, but 12 miles is a stretch, IMHO, and there aren't any manned 5-inchers at bases.
Anywho. Nice setup this week, although a bit too much like the MA from time to time. (La7s and Nikkis and Yaks, oh my!)
Splash1