Yeah, that's exactly what I've been doing. But like I said, no matter how many manned acks I put down that way, the last 1 I place NEVER works. It appears in the game, but you can't get into it. Like if I put 1 manned ack, it won't work. If I put 2 of them, then only the 1st one works. If I put 3 of them, then only the 1st 2 work, etc. So, to get the number of manned acks I want, I put them all like I want, then have to add 1 more (which won't work) and hide it inside a big building.
That just seems silly to me, so I'm sure I'm missing something. Is there a way to keep from having to have 1 extra, nonfunctional manned ack?