Rock. Incidentally, as things go, if anyone wants to play an idealistic Core Worlder, like an Alderaanian or some cocky Corellian, go right ahead. :) 

Edit: The replacement depot is intentionally patterned on the sort of thing that was done in WWII, Korea and Vietnam, which was the individual replacement system. Heinlein also worked it into his writing, so it is a bit of a nod to Heinlein as well as a sufficiently uncaring, unfeeling and fundamentally foolish system. I'm not sure the entire Alliance uses it, but for now it suits our plot.