The House Always Wins VIII

The House Always Wins VIII is a main quest in Fallout: New Vegas.

Synopsis
After having completed all of Mr. House's tasks, he and the Courier sit at the precipice of intimidating the New California Republic into immediate withdrawal and destroying the main army of Caesar's Legion.

Detailed walkthrough
Before going to Hoover Dam, the Courier has the option to prepare for the battle. This will start the quest. When ready, speak with Mr. House and he will redirect the Courier to Hoover Dam and give the quest All or Nothing.

Quest stages
Part VIII

Bugs
After agreeing to begin the battle for Hoover Dam, the player character may become stuck and unable to move, with nothing else happening. This is because the script for Mr. House contains a redundant endif that prevents the script from executing.