Fallout: New Vegas - Project Brazil Prequel Mod

Project Brazil is a "near Total Conversion" mod that serves as a prequel to the story of New Vegas. A surprisingly good intro trailer has been released and the first installment is due for release this month:

This is a near Total Conversion for Fallout: New Vegas. Fallout: Project Brazil adds an all new story around a new player character, an adopted resident of Vault 18, embarking on a quest to a hidden complex in the ruins of Los Angeles. Along the way you'll discover a pitched battle between the Survivalist Army, the New California Republic, and The Super Mutants, which shapes the politics and events leading to the NCR's invasion of the Mojave. The story takes place in 2260 - many years before the "Courier" awakes in New Vegas, while the Enclave struggles to rise again on the West Coast.

The Mod branches off from New Vegas right from the New Game menu. The game will be released in chapters, with the first release containing 3 parts. The full campaign will contain 16 Main Quests and several side stories, all related to the player's journey through Vault 18 and the wasteland of San Bernardino. Their choices at each stage will shape the next, creating 2 plathroughs worth of unique content.

The mod's first installment should be released in January.

Fallout: Project Brazil requires no DLC or additional downloads.
Just Fallout:NV, right out of the box.

The story features:

An Alternate Start in Vault 18 with a new Childhood Story and Escape
A very large worldspace in California - Black Bear Mountain National Forest
An epic battle between The Super Mutants, The Survivalists, and The New California Republic
A small Wasteland by the Ocean in Santa Monica, California
A Pirate Radio Station
Giant Robot Armies
Epic Battles
Inter-Dimensional Travel
Hacking
Zombies
And A Ruined Underground City called "Project Brazil!"

[This mod has nothing to do with the country of Brazil. No, seriously, it's not The Country of Brazil. I swear. Project Brazil is a working title. The artistic form and story themes are heavily influenced by the Monty Python veteran Terry Gilliam, the classic 1985 film "Brazil."]

Spotted at PC Gamer.