We Are Legion

 is a quest in Fallout: New Vegas.

Quick walkthrough
Kill all NCR Officers at Camp Forlorn Hope This is a pro Legion quest please be aware that if done in a different order it may cancel other quest.

Detailed walkthrough
If you are not wanted by the NCR this one will be close to a simple hack and slash. You should be able to walk into the camp with no issue and begin in a strategic location, try to pick a place where your back is against the wall. There are a lot of NCR men with some MP and the dogs, they are all simple but if you pair them with the mission targets it may get messy, so take them on one at a time.

Quartermaster Mayes is the average joe of all those you have to kill, he walks among the men and there for if you go for him almost everyone will know, but he does not take a massive amount of damage. Also you might be able to catch him sleeping at night, some of the others do not sleep!

Dr. Richards is among the easiest, maybe, because he is in the medical clinic most of the time, alone. If you go for him first you should be able to hit him with a one shot and come out unnoticed. He sleeps in a tent down from the Medical Center.

The only target that you may have difficulty with is Tech Sergeant Reyes, as she has two guards and is in a well opened close quarters tent. Although it might still be a harder task it is still not that difficult. Both her guards, like most of the ones outside of the tent, have caravan shotguns so try to keep some what of a distance. She herself is almost always sitting down and there for is not usually in the fight until a shot or two goes off, but still is the most dangerous of the three if she does manage to get up.

Major Polatli, is the wanderer of the targets he maybe inside with the Tech Sergeant, but he is usually outside by the power station near the communications tent. He is the other target that sleeps.

Extra Advice
Be sure to collect the dog tags off of the fallen men and return them to Mayes if you wish to gain more NCR fame.

Tech Sergeant Reyes gives you the quest, Return to Sender, a pro NCR quest.

Dr. Richards supplies the quest Medical Mystery another pro NCR quest.

Quartermaster Mayes collects dog tags for NCR fame, kill him and no one collects them for the NCR. Aurelius of Pheonix will still collect them for the Legion if you are Pro-Legion

Major Platli gives the mission Restoring Hope, Another pro NCR quest.

Journal entries
None Kill all NCR Officers at Camp Forlorn Hope.

Behind the scenes
"We are Legion" is a quote from the Gospel of Mark 5:9 - And He (Jesus) asked him (the man), "What is thy name?" And he answered, saying, "My name is Legion: for we are many."

This could also be a reference to a Mass Effect 2 Dialog with the Geth. When asked by the player what it's name is it replies: "We are all Geth" This because all Geth are linked together in a sort of collective intelligence. EDI, the ships' AI then suggests the name Legion, quoting the Gospel of Mark. Obsidian also used this quote in dialogue and naming scheme in the "Neverwinter Nights 2" series. In that series, 'legion was a a group full of the souls of the damned, stuck in. The player has the option to kill legion, release legion, or accept them into his party under the name 'One of Many'. Despite the choices you make in that game (Mask of the Betrayer), Legion is always released from the furnace in the second expansion (Storm of Zehir), where he's found rampaging across the Forgotten Realms.

Also, Obsidian added this as a reference to the internet group Anonymous, who are known for their harmful and overall bad actions. Anonymous' slogan is "We are Legion, Expect us". This is further reinforced by the way the NCR 'expect' legion to assault.