Ghoul Mask

The ghoul mask is a unique piece of headwear in Fallout 3. It is a mask which completely covers the face and appears to consist of multiple patches of feral ghoul skin sewn together.

Characteristics
It provides a damage resistance of 3. The primary benefit of wearing this mask is that it keeps feral ghouls friendly to the player and his/her companions, thus avoiding combat in areas of the map that contain feral ghouls.

Although it is stated in-game that feral ghouls would attack despite the mask if you got too close to them for too long, this is not true. You can stand next to them indefinitely, follow them around or even try to talk to them. Although they will not speak if you attempt conversation, they will occasionally look at the PC and tilt their head to the side as though confused.

Despite the mask being considered headwear, it is counted as a piece of eyewear and not as "full" headwear like hockey masks. As such, certain headwear can be worn with it, including combat helmets for a nice +8 DR in total. In addition, your helmet does not receive any durability damage while wearing this mask and you will not need to repair the helmet at all. However, the ghoul mask will take the damage instead and has fairly low item HP, meaning that after only a few combats its condition will be at 0 HP and it will have to be repaired by an NPC.

Obtaining
This unique item may be obtained by completing Tenpenny Tower in favor of Roy Phillips and his army of ghouls. Upon meeting Roy at the main doors of the tower, he thanks you for aiding him and gives you the mask so you may participate in or watch the wholesale slaughter of all former Tenpenny residents.

The ghoul mask can also be obtained by peaceful persuasion. With high enough charisma and speech skill, Gustavo, Tenpenny, and the residents can be persuaded to let Roy and his followers live in the tower. After telling Roy the good news, he'll immediately hand you the ghoul mask.

Bugs

 * Equipping the mask while it is broken will tell you that you cannot equip broken items. However, you permanently gain the effect of the mask. You will be able to cruise through the Metro and certain buildings with no battles but if you unequip it you will be unable to equip it again until you repair it.
 * As long as stealth mode reads [CAUTION], when facing feral ghouls, you can equip the mask and receive the bonuses after a few seconds if it remains at [CAUTION] but does not become [DANGER].
 * If you do this, then, under certain circumstances (being hidden with Dogmeat and a follower), you may constantly do sneak attack criticals while remaining hidden with single shot weapons, mainly because full auto guns, such as the SMG, causes more aggression to you, even when Dogmeat is present, otherwise stealth becomes [CAUTION] and ghouls will be hostile.
 * There is a bug where the ghoul mask dissapears completely while wearing it, and it seems to have melted into your face and you will permanently gain the effects of the ghoul mask.

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