It is a heavy tank developed and equipped by the Soviet Union in 1942. The KV-2 heavy tank is assembled with a new turret and artillery on the chassis of the KV-1 heavy tank. The tank has a combat weight of 53 tons and a crew of 6 people. The main gun is the M10 152mm howitzer, which fires various types of shells including lethal grenades, explosive grenades, and armor piercing shells. The firing rate of the artillery is 2-4 rounds per minute. The maximum range for indirect shooting is 12000 meters. The armor piercing thickness when firing armor piercing shells can reach 124 millimeters. The maximum speed of the tank is only 26 kilometers per hour.

The KV-2 heavy tank was a type of heavy tank developed and equipped by the Soviet Union in 1942. The KV-2 heavy tank is assembled with a new turret and artillery on the chassis of the KV-1 heavy tank. The tank has a combat weight of 53 tons and a crew of 6 people. The main gun is the M10 152mm howitzer, which fires various types of shells including lethal grenades, explosive grenades, and armor piercing shells. The firing rate of the artillery is 2-4 rounds per minute. The maximum range for indirect shooting is 12000 meters. The armor piercing thickness when firing armor piercing shells can reach 124 millimeters. The maximum speed of the tank is only 26 kilometers per hour.

The 2S3 self-propelled howitzer is a 152mm self-propelled howitzer developed by the former Soviet Union in the late 1960s. This type of howitzer is composed of a PI-20 howitzer and a Sam-4 missile launch vehicle chassis, with a barrel length of 29 times the caliber, equipped with muzzle brakes and smoke exhaust devices, and loaded with ammunition by a mechanical loader. The body is enclosed and has strong three defense capabilities, making it suitable for air transportation. When firing grenades, the 2S3 howitzer has an initial velocity of 670 meters per second, a maximum range of 18.5 kilometers, and a maximum firing rate of 4 rounds per minute. It can fire various types of ammunition such as grenades, rocket extended range shells, armor piercing shells, as well as nuclear and chemical bombs.