For A Few Brahmin More is a massive fan-made expansion for Fallout: New Vegas
Modder Ashtonlp101 has released a large fan-made expansion for Fallout: New Vegas called For A Few Brahmin More. It's free, and in terms of scope, it's firmly in DLC territory.
The expansion includes two main quest lines and six side quests, along with over 2,000 lines of fully voiced dialogue. On top of that, there are 28 custom interiors, 9 new weapons, two potential player homes, and a hefty amount of new armor.
On the gameplay side, For A Few Brahmin More features integration loops and a reactive consequences system similar to TLD mechanics. The story kicks off with Coalition Flyers posted around the southern Mojave towns of Goodsprings, Primm, and Novac.
When the Courier reads one and attempts to join the Cowboy Coalition, a Booth Baron agent interrupts with a warning to back off. Where things go from there is up to the player.