Find the weapon is a quest objective in the mission Taken for a Ride in Fallout 4.
Quest[edit]
Location[edit]
Walkthrough[edit]
You know about the weapon so now it is time to find it. Go through the lockers nearby to find more ammo, grenades and a few other useful items. Head through the nearby hole in the Northern wall. Go on to the first row and look in the reactor to find another Fusion Core. This will help because it reduces the power in the arena.
In the locker room, to the far right, you will find the gun that Gage told you about. Thirst Zapper is found there for you to use against your Opponent.