The Stationary Machinegun is a defense kit.
Real: Browning M2 50Cal https://es.wikipedia.org/wiki/Browning_M2
After placing it down, you will be able to activate it and shoot a barrage of bullets in a small area in front of you.
Base ammo capacity without perks is 200 rounds of explosive ammo, making this a powerful tool in horde attacks. After all the ammo is used, the machine gun will disappear.
Because of the nature of the gun, you want to be able to have a clear view of all the zombies in a swarm in order to use this effectively. Having obstacles in front of the crosshairs limits its usage greatly because you cannot move it.
Design: Browning M2