well, my husband knows alot of guys from when he was in boot- even ended up at MCT with a couple of the same guys and they are pretty close. I heard theres not alot of time to "make friends" but you eat, crap and sleep with them everyday. You can write to another recruit i would think. I wouldnt see why not. You have an envelope- a paper, and a stamp. Im sure you could get it to him like any other letter- i dont think theres a limit WHO you write too, but how would yall get each others address? Take care.