Xenotech Expert

Xenotech Expert is a perk which is added to Fallout 3 in the Mothership Zeta add-on.

It increases the damage done with alien weapons by 20%.

Obtaining
To get this perk you must find a "shooting range" in the weapons lab (A room with an alien atomizer and an alien disintegrator next to a switch). Activating the nearby switch abducts enemies and transports them to the range. Raiders, Deathclaws, Giant/Albino Radscorpions, Yao Guai and Sentry Bots are available. Simply watching the enemies kill each other will unlock the perk.

Affected weapons

 * Alien Atomizer
 * Alien Blaster
 * Alien Disintegrator
 * Atomic Pulverizer
 * Captain's Sidearm
 * Destabilizer
 * Drone Cannon
 * Drone Cannon Ex-B
 * Electro-Supressor
 * Firelance
 * Shock Baton

Bugs

 * The damage for Captain's Sidearm and Electro-Suppressor doesn't change in the Pipboy with Xenotech Expert.
 * This perk may affect Assault Rifles and Chinese Assault Rifles. (unconfirmed)

Videos
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