Qoe
It's probably MCRD. Marine Corps Recruit Depo were if you live west of the Mississippi that is where you do your Boot Camp.

Tell him HM1 stated Marine stands for
My
A$$
Rides
In
Navy
Equipment

and USMC stands for
U
Suckers
Missed
Christmas

However I had to miss a few also.

"All I want is a weeks pay for a day's work"
Steve Martin