Royal Air Force fighter-bombers conducting strafing runs with the British reporting the loss of one GR-3 Harrier (Harrier XZ 963, piloted by Squadron-Leader Jerry Pook) to small-arms fire. The 1st Assault Section fought in the Battle of Top Malo House on 31 May 1982. In an action lasting 45 minutes, the Argentine Army Special Forces patrol under Captain José Arnobio Vercesi was defeated and the survivors captured in the encounter with the British Mountain and Arctic Warfare Cadre, a Royal Marines unit, attached to the 3 Commando Brigade that reported 3 British badly wounded in the gun-battle. Another British Marine (Sergeant McClean) suffered bone bruising when hit in the hand while attempting to fire a 66mm anti-tank rocket. On the night of 5–6 June Captain Andres Ferrero's 3rd Assault Section dislodged a platoon of Royal Marines in the form of Lieutenant Tony Hornby's 10 Troop, 42 Commando from Mount Wall that had been calling down softening up fire on the Mount Harriet defenders. According to Ferrero: On 8 June, Private 1st Class Argentino Foremny of the 602 Commando Company Blowpipe Team that Major Rico had sent forward to Mount Harriet, with the help of the built-in zoom-in sight of his man-portable surface-to-air missile launcher, confirmed the presence of the British troopships Sir Galahad and Sir Tristram at Port Pleasant: Captain Ferrero's 3rd Assault Section suffered one killed (Sergeant Mario Antonio Cisnero) and one wounded (First Lieutenant Jorge Manuel Vizoso-Posse) while Captain Eduardo Miguel Santo's supporting National Gendarmerie section suffered another dead (Sergeant Ramon Acosta) and another wounded (Sergeant Pablo Daniel Parada) in a fierce action near Murrell River on the night of 9/10 June, seizing much equipment and forcing the attacking Royal Marines platoon to withdraw, with Major Rico belatedly calling down fire support from Lieutenant-Colonel Martin Balza's 3rd Artillery Group in an attempt to cut off the British escape route and take prisoners. In this action in the early hours of Thursday 10 June 1982, 50 Argentine Army and National Gendarmerie Commandos fought against a reinforced platoon of Royal Marines. One Royal Marine (Corporal Peter Fitton ) was reportedly killed by either friendly or defensive mortar fire in the action or in the approach to Murrell River. According to the British military historian Bruce Quarrie, it was a hard-fought and costly action for both sides: Captain Hugo Ranieri, armed with a .300 Weatherby Magnum bolt-action rifle, fought as a