SH - Support Helicopter (Puma/ Merlin/Chinook)
MTP - Multi Terrain Patter, New Generation of camouflage clothing
Guy on the Right
DFAC - US Acronym: Dining Facility
CAM - Centre Of Aviation Medicine
PT - Not sure, Procurement Team?
GR - Ground Attack/ Reconnaissance (As in Tornado GR4)
TAC AT - Tactical Air Transport. That thing C130s do