Passage: At the war's outset, FRELIMO had little hope for a conventional military victory, with a mere 7,000 combatants against a far larger Portuguese force. Their hopes rested on urging the local populace to support the insurgency, in order to force a negotiated independence from Lisbon. Portugal fought its own version of protracted warfare, and a large military force was sent by the Portuguese government to quell the unrest, with troop numbers rising from 8,000 to 24,000 between 1964 and 1967.The military wing of FRELIMO was commanded by Filipe Samuel Magaia, whose forces received training from Algeria. The FRELIMO guerrillas were armed with a variety of weapons, many provided by the Soviet Union and China. Common weapons included the Mosin–Nagant bolt-action rifle, SKS and AK-47 automatic rifles and the Soviet PPSh-41. Machine guns such as the Degtyarev light machine gun were widely used, along with the DShK and the SG-43 Gorunov. FRELIMO were supported by mortars, recoilless rifles, RPG-2s and RPG-7s, Anti-aircraft weapons such as the ZPU-4 and from 1974 the Strela 2.In the dying stages of the conflict, FRELIMO was provided with a few SA-7 MANPAD shoulder-launched missile launchers from China; these were never used to shoot down a Portuguese plane. Only one Portuguese aircraft was lost in combat during the conflict, when Lt. Emilio Lourenço's G.91R-4 was destroyed by premature detonation of his own ordnance.The Portuguese forces were under the command of General António Augusto dos Santos, a man with strong faith in new counter-insurgency theories. Augusto dos Santos supported a collaboration with Rhodesia to create African Scout units and other special forces teams, with Rhodesian forces even conducting their own independent operations during the conflict. Due to Portuguese policy of retaining up-to-date equipment for the metropole while shipping obsolete equipment to their overseas territoires, the Portuguese soldiers fighting in the opening stages of the conflict were equipped with World War II radios and the...

Question: What was the weapon of choice for soldiers that deployed parachutes?
the AR-10