?

PT...MSE...ACU...BCU...HMMWV...M142HIMARS...
FRG...FA...MWR...BOSS...PX/BX...AAFES...ASAP...
ASYMCA...ACAP...ACS...AFB...SSC...NCO...LT...BC...AMIC....
PCS...
So yeah you get the idea. A lot of acronyms happen around here. Everyday, All the time. So why, when Derek gets an Army notepad, does it say memorandum on the front? Everyone else knows that if you just write "memo" it's okay.