Rate of Fire is how many shots (Shooting dice) a ranged weapon can fire in one action. A pistol with a RoF of 1, for example, can fire one shot per action. For example, a machine gun with a Rate of Fire of 3 can fire three shots per action. When you use a weapon with a Rate of Fire higher than 1, declare how many of the shots are aimed at each target,

The Wild Die can only replace one of these rolls.

Firing more than one shot in one action from a weapon subtracts 2 from the attacker's Shooting rolls due to Recoil.