The Gunner from the Sea

The MG gunner is a SEAL or must become one (SQT). He is definitely practicing a "Over The Beach" landing, which is an inland mission. He wears a semi-wet diving suit and the fins are strapped to his back, he probably wears amphibious shoes. He has a Swimmer Headset on his head and in his hand the MK48 (OptiK. EOtech 553) - we would guess Mod1 rather than Mod0 for the MG. The special covering of the RAS on the MG is apparently meant to prevent the sharp-edged mounting rails on the MK48 from damaging the diving suit.