Take his keycard and head to the basement. When he turns back around, urge him to drink the tea. Look at one of the highlighted images behind him which will prompt you to ask a question. He will most probably pick the one without poison in it. Pick one when Cherkov is on the phone to empty the poison into. He will allow you inside and quickly bring in two cups of tea. Now, head back to the security guard and request to meet Cherkov. Use this to open the lock and access the vial. Look for Sulfur (S), Rhenium (Re) and Neodymium (Nd).

Find these Chemicals on the chart behind you and locate their atomic numbers. The screen shows you the chemical used in the formula. Fire up the computer and you can navigate to the page that contains the formula for the top-secret, highly lethal poison. To get into the locker, you will have to get a 6-digit code. It is a room/ lab with a computer and a locker that contains the poison that you will trick Cherkov into consuming. Quickly head to the highlighted location. He lets you know that Cherkov will be available after he deals with a prisoner. Once you reach his office, speak to his secretary outside. Of the three successful ways we tried out, this one was the most espionage-like method. This is one of the more complicated yet fun ways to access the keycard. You have an empty keycard with no way to gain access to the bunker. This makes this pathway too loopy and complicated without any return. When you head to the big double door indicated by the marker, you find yourself heading up a big staircase only to find that this section has been roped off with restricted access. You can access a bunch of empty keycards which you have to take to a separate location to activate. Wait for the other guard to finish investigating the noise through the window.Īfter this, when you head back to the guard outside the data unit, you can give him the required documents and enter the room. After you enter, quickly get the documents and then hide. Stow his body quickly and pick the lock to the door.

Head to the war room and take out the guard there patrolling outside. On speaking to the guard manning the station, you find out that you need permission from the war room to access the data room. Reprogram KeycardĪfter your conversation with Gorbachev and Zakhaev and disabling the cameras, you can head to the data unit where you speak to a guard to try and reactivate your now defunct keycard. This mission also has a hidden clue like the Brick in the Wall mission. We will look at all four routes, the outcomes, and which route guarantees success. There are several routes to obtain the keycard but one is the easiest.

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