Dog (Fallout: Brotherhood of Steel)

Dogs are creatures $$

Gameplay
Normal dogs are seen in towns like Carbon. A friendly animal living with townsfolk. If the Brotherhood of Steel Initiate has a perk Man's Best Friend, he gets a dog companion, who will attack his enemies.

Raider dog
Specially trained killers, these dogs wear spiked armor and are highly aggressive.

Poison dog
These dogs are common in the city of Los which is inhabited by ghouls. High levels of radiation caused them to become glowing, poisonous, radioactive beasts, like some ghouls and radscorpions. The Church of the Lost uses them as its enforcers.