Fast Shot

Fast Shot is a Fallout, Fallout 2 and Fallout Tactics Trait.

You don't have time to aim for a targeted attack, because you attack faster than normal people.

Fallout, Fallout 2 and Fallout Tactics

 * All weapon attacks cost you one less Action Point. (Fallout)
 * You are also unable to aim with your HtH and melee attacks. (Fallout, Fallout 2)
 * All guns and thrown weapons attacks cost you one less Action Point. (Fallout 2, Fallout Tactics)
 * You are unable to make aimed shots. (Fallout Tactics Fallout 2)

J.E. Sawyer's Fallout RPG
During the charge phase, you can fire a firearm instead of charging (eliminates you from the action phase of that round), but your critical hits with firearms always come in 6 point increments.