In my unit (USMC early 90s), there were folks who said it, some who didn't. It wasn't part of universal Marine speak, but was known. Using the clock for direction was quite common.
Edit : Rethinking this. I don't think I ever heard the exact phrase "I've got your six". People would assign positions using 6 (or 3 or 9 or w/e), while patrolling or whatever. I also heard 6 used as the back end of something.
Last edited by DougW : 08-20-2012 at 07:45 AM.
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