[8] Following commando training at Achnacarry in Scotland, the unit consisted of about 450 men organized into a headquarters, five infantry troops consisting of three officers and 63 other ranks, along with a heavy weapons troop—armed with Vickers machine guns, 3-inch mortars and 6-pounder anti-tank guns—and a signals platoon.

[12] Corporal Thomas Peck Hunter was posthumously awarded the Victoria Cross for his actions during Operation Roast at Lake Comacchio, Italy during the Second World War.

[13] The Commanding Officer, Lieutenant Colonel Ian Riches RM was awarded the DSO in this action.

[18] The company's purpose was to guard the UK's Naval nuclear weapons and be a maritime counter-terrorism unit for offshore installations, including oil rigs and ships.

[18] In 1987, Comacchio Group ceased performing the maritime counter-terrorism role after a study transferred the task to the newly formed M-squadron of the Royal Marines Special Boat Service.

[18] The Group moved from RM Condor in Arbroath Angus, where it was co-located with 45 Commando, to HM Naval Base Clyde, which is situated near Helensburgh, Argyll and Bute, both in Scotland.

[21][22] The primary mission is to prevent unauthorised access to the UK's strategic nuclear deterrent through the provision of specialist military capability.

[23] 43 Commando Fleet Protection Group Royal Marines is a Royal Marine Unit based at HM Naval Base Clyde in Scotland and is part of UK Commando Force, the UK's high readiness expeditionary amphibious force.