I'm gonna have to agree with Grant on this one. Gear config., lack of main landing gear strut fairing, batwing SATCOM antenna, non-USN type countermeasures (flare bins and aerials on each side of tailboom), FLIR (USAF/Army style mount, not USN), interior, two main cabin doors.
The operators walking around are definately pulling jump/dive/hazerdous duty pay. Haircuts, UDTs and socks bloused over the boots. Damn!!!!! Looks like the "PT" uniforms we wore in Saudi/Kuwait/Somalia/etc. More than likely SEALs (given the environment and mission), but could be SF or even Delta trying to pass as SEALs.
Lots O' Stuff to dent primers on the fast boat on deck.
I'd guess that little excursion in the straits of Hormuz.......