Of course they CAN
M1A1 Thompson, Colt 1911, M1A1 Grand, and M1A1 Carbines (For Foot Solders)
The most commonly weapon used by the 82nd Airborne was the M1 Garand, M1 and M1A1 Carbine, Thompson M1A1, BAR, M3 Grease Gun, M1919A4, and M1911 pistol.
BAR (Browning Automatic), Thompson Submachine gun. .45 caliber Colt m1911 pistol, M1 Garand, Sten, Bren (both of which are british) , Lee-Enfield, M1A1 Carbine.
the United States, Great Britain, and the British Commonwealth of Nations all used one variant or another of the M1A1 Thompson sub-machine gun, military variant. this weapon was known by the nickname of the "Tommy gun".
Cost.
The British Army use both the canteen and hydration packs
Not by the British Army, as they left Austria in 1955. The buildings are still standing and may be in use by the Austrian army.
No, the British Army does not use the AK-47 as their standard assault rifle. They use the L85A2, a British-designed and manufactured rifle.
M1A2 and M1A1 Abrams. There MIGHT still be some M60A3 tanks in use with the National Guard.
America used the M1 Carbine, M1 Garand, M1A1 Thompson, M3 "Grease Gun", Browning Automatic Rifle (B.A.R.), M1903 Springfield, M1917 Enfield, M1897 Trench Gun, M1917 Browning .30 Cal. LMG, Browning .50 Cal HMG, M1911 Colt .45, and the Bazooka (M1A1) and Variants.
The M1A1 Thompson has been phased out of service for quite some time. The last force that I'm aware of which used them with any regularity were the republics which split from the former Yugoslavia (particularly Croatia) during the Yugoslav wars. Those forces have since phased all of those weapons out of service, as well. Your likelihood of being assigned a submachinegun period is minimal, anyhow. Submachineguns are typically limited to special operations forces on an 'as needed' basis, and they've been completely phased out of line units, as they've been replaced in their roles within line units both by modern assault rifles and light machine guns.
They used sub machine guns, sniper rifles, rifles, pistols, anti tank weapons, and machine rifles. Examples: The Thompson, BAR (Browning Automatic Rifle), M1A1 Carbine, etc....