The LPO-50 is a man portable flamethrower utilized by the Soviet Union for assaulting fortified positions. Equipped with three canisters of fuel, mounted in a backpack, the LPO-50 fires in bursts of two to three seconds and carries 3.3 litres of fuel. Recently the creation of more mobile Thermobaric weapons such as the RPO-Z Shmel had reduced the demand of the more clumsy traditional flamethrower.
The LPO-50 makes an apperance in the level Steel Yard in the hands of Soviet Soldiers and is later used against the player as they cross the Soviet Air Base and the Duga 4 Array. On the same level another LPO can be found in the hidden weapons cache and can be used by the player.