while you're in the forest doing whatever you're doing just now, you suddenly heard the sound of "tractors??" and the cracklings of trees breaking

The sound gets closer and closer, it's as if 20 tractors were coming right at you. you tried to run but the sound still gets closer and closer. Until you turned around and sees a 125mm smoothbore gun pointing directly at your head

"Vrrr vrrm vrrr"

Tank noises