Have a weapon that has a longer range, or higher mobility.
It is based off of the M249 machine gun, but it also has some Ultimax 100 features too such as the low recoil, fire rate, and drum design.
Unlike the real world variant which fires quite quickly, the in-game weapon fires slower than in real life.
It might be considered the best weapon in Deadly Games,due to the long range it has and short kill time.
It can also be found in the Time Survival map "Deadly Arena" on all 4 of the towers.
Despite it being a machine gun, it is in the Special section for an unknown reason.
It is the only default weapon without a default cartridge supply.
In the Armory, despite being called 'Heavy' Machine Gun, it is held in one hand.
This and the Missile Thrower are the heaviest weapons in the game, with a mobility of 90. Also, the M249 SAW is real life would be considered a "squad automatic weapon" or a light machine gun. the "Heavy Machine Gun" title would only be applied to machine guns firing a heavy anti-material rifle cartridge.