Cassandra Moore

Colonel Cassandra Moore is the commanding officer of the NCR Army forces stationed at Hoover Dam

Background
Moore volunteered for the NCR military at the age of 16 and became an officer at 17. During this period, she took part in operations against various gangs plaguing the NCR territory, sharpening her skills on the likes of Jackals and Vipers, as well as surviving four tours of duty against the Brotherhood of Steel in California. Chief Hanlon comments that she is "better at making graves than making friends."

She was invited to join the New California Republic Rangers and considered those years to be the best of her life, "doing something important and with the freedom to do it as she saw fit." She was forced to leave the rangers after an injury, promoted to colonel, and given more administrative responsibilities. Moore comments that she misses being "out in the open air, planting explosives and laying down covering fire" and resents being in an office every day. She acknowledges the benefits of her position, deciding how to process on a large scale without opposition.

Quests

 * For the Republic, Part 2: Colonel Moore tasks the player character with cleaning up the problems in and around New Vegas.
 * Kings' Gambit: Moore will tell you to tell the Kings to stand down or be destroyed and offers to send a squad to back you up.

Effects of the player character's actions

 * With a reputation of 'Idolized' with the NCR, Moore will salute the player character when they finish dialogue with her during the subquests contained in For the Republic, Part 2.
 * If the Courier sides with the NCR at the battle of Hoover Dam, one of Moore's orders are to destroy the Hidden Valley bunker. If the Courier chooses to pursue the diplomatic path, forging an alliance between the Brotherhood and the NCR will make her furious and the player character will gain NCR infamy. The amount will not impact the overall reputation with the NCR so long as the Courier has been in good standing with them up to that point.
 * Colonel Moore will disappear from the game world if the player character fails Don't Tread on the Bear! quest to prevent them from progressing further along the NCR questline; killing her will fail this quest instantly regardless of player character's reputation with the NCR.
 * If Colonel Moore dies, the whole NCR will become permanently hostile to the player character, regardless of the circumstances involving her death or the player character's reputation with the NCR.

Appearances
Cassandra Moore appears only

Behind the scenes
In response to a question about whether or not Moore was "lawful neutral," Joshua Sawyer describes various ways that the character is capable of brutality, stating, "I'm not big on arguing moral/ethical abstractions like alignments, but this amounts to 'worse than neutral' to me. He continues to comment that her actions are not always in the NCR's interests, but her own vendettas.

Bugs

 * During How Little We Know, there is a bug where, after completing it, the game will not allow the player to talk to Colonel Moore. Possible cause: This happens when the courier hasn't spoken with Liza O'Malley at the beginning of the Omertas part of the For the Republic, Part 2 quest or if the player has already gotten You'll Know It When It Happens from Yes Man.
 * One could use console command that allows you to lie about Omertas and continue the chain.
 * Kill Cachino and lie to the NCR about their plans. The player will still get NCR fame and no evil Karma. This is the only way to fix the glitch and continue with the NCR.
 * During the quest You'll Know It When It Happens, Colonel Moore may be missing.
 * In the desk in her office is a key, grab the key from her desk (the player will get negative karma, but no fame loss). She should now appear to be walking into her office.
 * During the quest Oh My Papa, when speaking to Regis, one will receive an objective update to speak to Cassandra Moore about an NCR/Great Khan alliance. When trying to speak to her, there is no dialogue option to speak about it.