This means it’s impossible to get the actual third level of the perk. Upon getting the second you are told that you got the third.

When you get the first level of the perk the game tells you that you got the second. The challenge repeats itself but you get no experience for it and the perk cannot be obtained three times like it should be. Note: This challenge and perk are highly glitched. It’s 3% first, 6% the second time and 10% the third time. This bonus increases each time the challenge is won. Perk: Machine Head – Grants a damage bonus against animals. Heck it even includes Rex if you’re picking fights with everyone. This includes Mister Handy, Mister Gutsy, Protectron, Securitrons and Sentry Bots. Dogs kills can be obtained by fighting the ones that come with the Legion (Legion Mongrels), the rare NCR dogs or the Fiend attack dogs.Coyote are found mostly around Goodsprings and the Coyote den north of Nipton.

Bighorners are most often found in the mountains near Jacobstown but can also be found anywhere in the Mojave Wasteland.

Lakelurks can be found in Ruby Hills Mine, Lake Mead or the Camp Guardian Caves and each of these locations can net you about ten kills.

However several times it has been noted to NOT give experience. Note: This challenge repeats itself but the perk can only be acquired three times. Perk: Animal Control – Grants a damage bonus against animals. This includes Lakelurks, Gecko, Mole Rats, Giant Rats, Dogs, Coyote, Brahmin and Bighorners.

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