I've got no Addons but...
The Army Air Corps uses the;
Gazelle
observation and recon
Crew of 2 and 3 passangers
Lynx AH7 (skids)
Anti-Armour
Crew of 2 (3 with door gunner) and 10 troops
Armament of 8 TOW missiles
Lynx AH9 (wheels)
theoretically anti-armour but used as light transport
Crew as AH7
In Brunei
Bell 212
Light Transport
Crew of 2 and 12 troops
Anytime in the next 10 years
WAH-64
Anti-armour
Crew of 2
Armament 16 x Hellfire missiles, 76 x 2.75" rockets, 1200 x 30mm cannon rounds
The Royal Air Force uses the;
Chinook HC2
SAR, Casevac and Transport
Crew of 2 pilots or 1 pilot 1 navigator + 2 Loadies + upto 2 door gunners + upto 54 troops or 10 tonnes of equipment
Armament 2 M-134 six-barrelled Miniguns and/or 1 M60 on the back door
Puma
SAR, Casevac and Transport
Crew of 3, 2 pilots or pilot and navigator plus a crewman and up to 20 troops or 2 tonnes of equipment
Armament 1 GPMG door mounted
Merlin HC3
Casevac and Transport
Crew 1 pilot 1 navigator and 2 crewmen and up to 24 troops
Armament 2 GPMG's mounted in port and starboard cabin windows.
Sea King (painted bright yellow)
SAR
Crew of 4 and up to 19 passengers
The Royal Navy uses the;
Sea King (painted grey and red)
SAR
Crew of 4 and up to 19 passengers
Sea King ASaC
Airborne Surveillance and Area Control
Crew of 1 pilot and 2 observers
Sea King Mk4
Commando Insertion
Crew of 1 pilot and 1 air-crewman upto 27 troops (also carries land rovers, 105mm guns etc externally)
Lynx Mk8 (wheels)
ASW and Anti-ship operations
Crew of 1 pilot 1 observer 1 air-crewman
Armament of Sea Skua anti-surface missile, Sting Ray torpedo, + depth charges + gun pods
Lynx Mk8 (wheels)
Commando support
Crew of 1 pilot 1 observer 1 air-crewman
Armament Simillar to Army AH7
Merlin HM Mk 1
ASW
Crew of 1 pilot, 1 Observer, 1 Aircrewman
Armament Sting Ray torpedo + depth charges
Merlin HM Mk 2
Not Yet in service
ASW and Anti Ship operations
Crew of 1 pilot, 1 Observer, 1 Aircrewman
Well that about wraps it up
Hope it helps!!
JoeHodgy