Still in the Dark

 is a quest in Fallout: New Vegas.

Quick Walkthrough

 * Locate BoS in Hidden Valley Bunker
 * Speak with Paladin Ramos
 * Make your way to Elder McNamara
 * Deal with the NCR Ranger
 * Speak with Elder McNamara
 * Retrieve 3 Holodisks from fallen Brotherhood Paladins
 * Return to Elder McNamara
 * Meet with 3 Brotherhood scouts and obtain their reports
 * Give Elder McNamara

Detailed walkthrough
This quest is obtained at the Brotherhood of Steel compound at the western entrance to the Hidden Valley bunker. To gain access to the interior of the bunker, the characters needs to have a Lockpick skill of 100 (to open a Very-Hard locked door) or they can simply interact with the intercom on the right after finding the password or getting far enough in any factions storyline to be asked to find the BoS. After the second door opens, you will encounter Senior Paladin Ramos, who will confiscate your gear and lead you to The Elder, who begins the quest. Note: The Paladin Ramos will shoot at the PC if he's dressed as an NCR troop, and removing the outfit will not cause Paladin Ramos to stop engaging the player. You're allowed to enter with your things if you got into the bunker via Veronica's companionship. The Elder will ask you to find the mission logs (you can also oust him with some optional quests and by giving logs to Hardin) The first is by Black Mountain where you'll fight multiple centaurs and Moe (Tabitha's pet) in a radioactive ditch you'll find a dead paladin and his log. The next is at the REPCONN facility with a speech of 60, intelligence of 7, and luck of 7 you can bypass fighting the robots here. Body is on top floor don't be confused he is sitting up against the wall now just quickly run out to the next mission log. The next one is in the bombing field of Nellis AFB. Don't over complicate things here run to first building crouch behind wall wait till artillery stops then IMMEDIATELY run the the upper building to ur right and crouch behind this wall; you may get hit here but its ok as soon as they're done you're home free run along the fence till you get dialogue with boomer talk to Pearl go back out and follow marker to the last body (tell all companions to wait outside bombing run or they WILL die). Head back to the bunker and you can end the quest here by FIRST I can't emphasize this enough by FIRST telling the current Elder u have the logs THEN telling Hardin you have the logs this will end the quest and shorten the unneeded and tedious missions following it.

If you discovered the bodies of Brotherhood Paladins anywhere (E.G. the REPCONN facility 3rd floor) the note they have will have a password on it. You can use that password with the intercom next to the door to start the quest. Also if the player has the companion Veronica, she will go to the intercom and talk to Ramos for you, thus letting you in the bunker, while keeping your gear.

Also, if you were sent by House to learn about the Brotherhood of Steel, when entering the bunker from the northern entrance, a patrol will run out. This will cause the door to open, allowing you to enter.

Bugs
After retrieving all the components for the air filtration system and returning them to the Brotherhood, it is possible to tell McNamara that the air filtration system problem is fixed, and he will have a change of judgment about his ways and end the lockdown, ending the quest and giving you EXP. However, after this, even though the quest is completed, you can still go to Hardin and tell him that McNamara broke the Chain That Binds, and you will receive the EXP for completing the quest this way, too. This glitches the game so that Hardin will never oust McNamara and you can never have any actual dialogue with them beyond this point, except from them stating they are preparing for one another.