That was my guess too- retired, now private sector. Possibly South African? I imagine a lot of those guys are happy to get the hell out of Dodge.
With the amount of PMC’s all over Africa right now it could be any country that lets white guys carry rifles still, but if he’s a PMC (albeit the poser exception) not many would want to be called out for sporting a SEAL type patch, doesn’t do good things for your rep, and your rep is pretty much how you get the good gigs and not stuck riding an oil platform or guarding a fence.