Original sentence: It was popular with the Marines as a point-defense weapon for countering ambush by Sandinista guerrillas and led to the organisation of 4 man fire teams with as much firepower as a 9 man rifle squad.The M1 also has a permanently attached buttstock, and was first issued in 1942.The Thompson was also known as the "Tommy Gun", "Chopper", "Chicago Typewriter","The trench broom gun" and "Chicago Piano".The Thompson was favored by soldiers and civilians alike for its compactness, large.Thompson found a financial backer, Thomas Fortune Ryan, and started the Auto-Ordnance Corporation in 1916 for the purpose of developing his weapon.Thompson intended the weapon as an automatic 'trench-broom' to sweep enemy troops from the trenches, filling a role the BAR had proved incapable of.While searching for a way to allow such a weapon to operate safely, Thompson came across a patent issued to John Bell Blish
Edited sentence: It was popular with the Marines as a point-defense weapon for countering ambush by Sandinista guerrillas and led to the organization of 4 man fire teams with as much firepower as a 9 man rifle squad.Since that time, the term has been applied generically to nearly all automatic weapons which fire pistol cartridges.Technically a machine gun (as are all fully-automatic small arms), the term "Submachine gun" was a reference to the compact size of the weapon, and the fact that it used a pistol cartridge rather than a rifle cartridge.The Thompson was also known as the "Tommy Gun", "Chopper", "Chicago Typewriter","The trench broom" and "Chicago Piano".The Thompson was favored by soldiers, civilians, police and criminals alike for its compactness, large.Thompson intended the weapon as an automatic 'trench-broom' to sweep enemy troops from the trenches, filling a role the more powerful BAR had proved incapable of with its slower rate of fire.Thompson, believing that the Blish Lock was the answer, obtained financial backing from Thomas Fortune Ryan, and started the Auto-Ordnance Corporation in 1916 for the purpose of developing his weapon.While earlier Thompsons had a buttstock which lockedinto place with a button release, the M1 had a simple stock which was held on with scres, and was first issued in 1942.While searching for a way to allow such a weapon to operate safely, Thompson came across a patent issued to John Bell Blish, for a "breech lock" which functioned due to static friction