[1][2] The commander of this unit in the Falklands War (Spanish: Guerra de las Malvinas) was 34-year-old, Major Mario Castagneto.

The first elements of 601 Commando Company arrived on 24 April, spending their first night in the former Royal Marine Moody Brook Barracks (that at the time served as the 10th Mechanized Infantry Brigade Headquarters) along with several regimental commanders that had earlier on attended a briefing in the building.

[3] Fearing that British had established an Observation Post on Tussock Island, near Stanley Airfield, Major Mario Castagneto's 601 Commando Company was sent to clear the island of enemy special forces in early May, but returned empty handed and completely covered in black soot due to an earlier supporting Pucara bombing mission on 21 April with napalm.

[10]Private Colin Charlton from the Close-Target-Reconnaissance Patrol from D Company observed the soft peat absorbed much of the deadly fire: We nearly got hit by their mortars.

The mortar shells landed either side of Colin and Paul’s patrol, close enough to kill or injure the men in other circumstances.

[11]According to Private Mark Hunt from D Company: We saw our first action a couple of weeks later when the Argentinians landed a large fighting patrol to try and capture someone to get information.

[14]On the night of 13–14 June, the 3rd Assault Section under Captain José Ramón Negretti was entrusted with the all round defence of Stanley House (the 10th Brigade Headquarters), a task the Argentine Army Green Berets bitterly resented, preferring action in the frontlines.

[15] During the Battle of Wireless Ridge, command and control broke down in the 7th Infantry Regiment and the Green Berets from the 2nd Assault Section were instructed to restore order and shoot on sight British SAS believed to have infiltrated the retreating Argentine companies.