Original sentence: 50 calibre machine gun fire in the sides and rear, and to infantry-based 106 mm recoilless rifles.A high velocity gun had better maximum range (2000 - 4000 meters) that would allow the BMPs to support the tanks spearheading any assault.A lengthen versioned of the original 73 mm gun was considered, but after some debate the 30 mm gun was selected for the following reasons:.A second batch of 150 vehicles between August and September.Egypt received its first batch of 80 BMP-1s between July and August 1973.However the BMP-1 was to be tested in combat in the October 1973 Yom Kippur War.It offered higher maximum elevation - a critical factor in Afganistan, where the limited elevation of the 73 mm gun caused problems.Soviet Union decided to produce an updated and improved version of the BMP.The BMP-1's low profile means that it is difficult for the BMP to fire over the heads of the advancing infantry it was supporting, since the barrel is less than six feet off the ground
Edited sentence: 50 caliber machinegun fire in the sides and rear, and to infantry-based 106 mm recoilless rifles.A lengthen version of the original 73 mm gun was considered, but after some debate the 30 mm gun was selected for the following reasons:.Egypt received 230 BMP-1s in 1973.It offered higher maximum elevation - a critical factor in Afganistan, where the limited elevation of the gun caused problems.The BMP-1 was to be tested in combat in the October 1973 Yom Kippur War.The BMP-1's low profile means that it was difficult for the BMP to fire over the heads of the advancing infantry it was supporting.The high velocity gun had better maximum range (2000 - 4000 meters) that would allow the BMPs to support the tanks spearheading any assault