nimbev - Sorry, TLA overdose.
TCW - Tactical Communications Wing. An RAF unit that provides, among other things, expeditionary airfield/aircraft coordination communications.
TSW - Tactical Supply Wing. An RAF unit that provides forward/tactical refuelling facilities to predominately battlefield helicopters.
MAOT - Mobile Air Operations Team. An RAF unit who provide ground-based command and control for various aspects of air ops.
CLA - Chemical Lab Assistant. The official title for personnel trained by QinetiQ/DFG West Moors to carry out fuels analysis and testing in the field.
CLR - Commando Logistics Regiment. The logistcs support organisation for the Commando force.