The Type 11 infantry support guns were typically assigned in groups of four to combat infantry regiments.
Each weapon was manned by a squad of 10 men (a squad leader, four gunners (two of whom stood in reserve a little distance from the gun), three men to carry ammunition and two men who handled the pack horses used with the gun), and was kept in contact with the regimental headquarters (typically up to 300 meters) away by field telephone or messenger runners.

The gun was effective in the early stages of the Second-Sino-Japanese War for its intended purpose of providing heavy infantry firepower against semi-fortified positions, such as pillboxes, machine gun nests, and lightly armored vehicles.
However, its low muzzle velocity, small caliber and low rate of fire rendered it quickly obsolete against Allied forces equipped with tanks, and it was seldom seen outside of reserve units during the Pacific War.
The Type 11 infantry support guns were typically assigned in groups of four to combat infantry regiments. Each weapon was manned by a squad of 10 men (a squad leader, four gunners (two of whom stood in reserve a little distance from the gun), three men to carry ammunition and two men who handled the pack horses used with the gun), and was kept in contact with the regimental headquarters (typically up to 300 meters) away by field telephone or messenger runners.
The gun was effective in the early stages of the Second-Sino-Japanese War for its intended purpose of providing heavy infantry firepower against semi-fortified positions, such as pillboxes, machine gun nests, and lightly armored vehicles. However, its low muzzle velocity, small caliber and low rate of fire rendered it quickly obsolete against Allied forces equipped with tanks, and it was seldom seen outside of reserve units during the Pacific War.
Type 11 37 mm infantry gun