Due to scripting errors, you can also bring it to any DLC environment with you, even in cases where it's not supposed to be there (like Dead Money or Lonesome Road). Getting a baby Deathclaw that needs to be fed pieces of meat seems like it won't go anywhere, but feed it enough, and it will evolve into an ultra-tanky Companion who will utterly wreck anything in its path.

The 'Friendless' Perk can be this, provided the player takes it early enough.

Human Resources: Chemical Engineer allows you to craft energy ammunition from the ashes and goo that results from scoring a critical hit with an energy weapons.Of course, you get two raider companions to help you out in exchange! Hated by All: The Banned for Life trait starts you off with this, giving you a Vilified status with all major factions in the Mojave.

Hand Cannon: The Big Iron revolver earned when taking the Ranger With a Big Iron trait uses the asset of the Vanilla Ranger Sequoia revolver.

Half the Man He Used to Be: Invoked in the description of Double-Slash, though in-game it only makes a swordsman in a Vault suit show up during some combat enounters.

Fun with Acronyms: E.P.I.C., AKA 'Eternal Partners In Crime', which increases the probability of a Mysterious Stranger/Miss Fortune intervention if you have negative karma.

Famed in Story: The In-Universe justification of Famous Survivor (which results in +1 Charisma and a 10% discount when bartering).

Death from Above: Special Ops allows you to order a missile launch.

This perk with a rather unappealing name gives a constant regen effects to limbs, and thus is invaluable in Hardcore mode. YouВ’re less healed by medical items and food, but your Medicine and Survival skills start at a higher level.

Counterfeit Cash: Dubious Craftsman allows you to craft NCR banknotes from pre-war money, and Legion Denarii from scrap metal.

Persistent Manner: Gives critical hits with VATS when you target an enemy while he is reloading his weapon.

Merciless: Gives an higher critical chance if you shoot a fleeing enemy in ironsight/scope mode.Bounty Hunter: The High Value Target trait makes you suffer random attacks from a squad of bounty hunters.Then, once the survival skill reaches 50, you automatically unlock a Vanilla recipe which converts 5 dirty water bottles into 4 purified water bottles, entirely eliminating the perk's only drawback. Since empty bottles are very easy to find lying around and functional toilets aren't exactly hard to find, this adds up very quickly and makes trivially easy to get water in hardcore mode (even in non-hardcore mode, it provides a way to hoard healing items for free). Boring, but Practical: Drink to Last! allows to convert most of the empty bottle-type items (minus the milk bottles) into bottles of dirty water when interacting with functional toilets (the ones you can drink in).Toast to Victory: The companions receive a buff similar to the one given by alcohol during fights.Too Drunk to Die: Increases you Damage Threshold when youВ’re drunk.As a Ranger/former Ranger (the description text isn't very explicit), you start with +1 in Agility and a pretty powerful revolver but suffer from more damage from the various Raider factions. Blessed with Suck: The Ranger With a Big Iron trait.Blasting It Out of Their Hands: First Thing First allows you to open a fight with this.

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