What it does
It makes better automatic default choices for crew assignments (e.g. "labs need scientists" or "drills need engineers").
It remembers your assignments, so that the next time you launch that ship, it will try to do the same thing. (No more discovering, *after* you're in orbit, that your gosh-darn rescue ship filled up all the slots and you've got nowhere to put the stranded kerbal!)
You can customize the default behavior with ModuleManager config.
NOTE: Th
Ah, okay. I've heard of Kerbal Construction Time, just not in circles where it's popular enough to be a commonly known TLA, like KER or KIS / KAS.
I have no idea how it works or is implemented. Depending on how it's set up, any of the following might be the case:
direct conflict between KCT and BetterCrewAssignment, resulting in weird/buggy behavior
overriding BetterCrewAssignment, so that the latter doesn't hurt anything but doesn't help, either
they work just fine to