Once all three guards have been eliminated, pick or break the lock to the room on the left, and hack the computer to get the hotel door code '7649,' which will be needed later to save you from hacking yet another door.
Deactivate the Turret
Have one spy temporarily deactivate the turret with the seconday (left trigger) action of the pistol, while the other sneaks by the turret to deactivate it via it's control panel. Once deactivated, move along by picking or breaking the lock on the next door, and dropping into the hole.
Once both spies are in the hole, there is another hole above, using the human-ladder method, climb into the next room and quickly turn off the lights. There is a door to the left (useless) and one to the right. Take the door on the right, eliminate the guard, and move towards the stairs. Shoot the light on the staircase out, climb them, and eliminate the guard up top in any fashion.
Interrogate the Fake Jong
There is a bathroom to your right, with the 'fake' Jong in it, interrogate him, and then put him to sleep using the left trigger. There is also a med kit in this room, and this should be your first save point. Note: Never save while the med kit door is open, or you will effectively kill the med kit, this is a glitch.
Once the game is saved, resume and use the code (7649) to unlock the door leading outside, but do not enter it just yet.
