My recruiter just called to tell me there was some sort of kerfuffle so my shipdate got moved back to September (he couldn't tell me the exact date), so I was looking at the graduation schedule for PI, trying to figure out some things when I noticed something weird.
OCT 17 3rd Bn Quebec & 4th Bn Oscar
but
NOV 07 Golf Co., 2nd RTBn., and Papa Co., 4th RTBn.
What does the "RTBn" thing mean?