The Republic of Sydney has faced off against hostile neighbours for more than a century and a half. In that time several elite units have been formed and disbanded, from the 96th Recon Rifles to the modern S.D.F. Airmobile Commando Regiment. After the heroic sacrifice of the 102nd Airborne in an assault on the inner walls, the 1st Airborne Commandos was quickly formed from their remnants. With the recent importation of helicopters, it was decided paratroopers were excessive for the defense of the polity's walled border. Therefore the "AComReg" was to replace past quick response units and take full advantage of modern helicopters' capabilities. The regiment is equipped as light infantry, giving them very high mobility that lends itself well with helicopter transport. They prefer the L1A1 Self-Loading Rifle and its variants over the OPA's AKM due to its precision and power, but AR-10s and AR-15s imported from the United States are becoming increasingly popular.