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). The ranges are in approximately the center of the map north-to-south, and on the easter side (see weapons lab for a map). Activating the switch closest to the door summons brahmin, while activating the far switch teleports abductee enemies to a second range.

There are 4 types of enemies on second range. At least one of each type must be killed (by yourself or other summoned creature) to get the perk: It may take some time to get one of each from last 3 groups.
 * 1) Raiders
 * 2) Yao guai or deathclaw
 * 3) Sentry bots
 * 4) Giant or albino radscorpions


 * On the PC version, use one of the alien weapons. keep summoning mobs and shoot them as they come out. After shooting about 30 of them, you will get the perk. It does NOT seem to matter what kind of mobs you kill on the range.

Affected weapons
This is a list of weapons that are affected by Xenotech Expert. All alien weapons are affected except the Electro-Suppressor.

Bugs

 * It is possible for the perk not to trigger, even after several switch activations. To remedy this, simply save and then load the save. After loading, activate the switch again and the perk should unlock.