Now look for the ladder to the left of the fuse box and climb it sneak along the pipes. Move into the next room and hide behind the gas canisters, wait till the guards finish doing their inventory check and hug the wall to the right and look for the fuse box and interact with it. Look for the door with a green light above it, enter this. Hug the wall to the right and knock out the guard sitting down. Take him out when you get an opportunity. Wait till the guard says 'time for a smoke break' and you will get a moral point. Hide behind the large wooden reels and listen to the worker complaining. Now head back to the fuse box you switched off, move into the large room hugging the right wall. This is not important for the non kill achievement but you must visit this area when going for the kill everyone achievement. If you exit this area and turn left there is a door. Take out both guards and look in this room for a safe. Wait till one guard says 'now thirty guys that's too complex' to get a moral point. Where the guy was doing pull ups, behind him is a small corridor that leads to two guards. One has a trap and if it goes off you will set off the alarm. (This may require you dealing with them in a slightly different order depending on how the guy doing pull ups reacts)Дo not open any lockers in this area. Once he drops to the ground quickly deal with him. The second guard starts walking away quickly knock him out and then watch the third guard doing pull ups. Wait for one to start doing pull ups then knock out the guard to your right. Look for the two guards in the other room. You will find three guards in the adjacent area. A guard will initially be interested but go straight back to the fire. Look to the right of these metal doors to see a lever pull this to open the doors allowing you access to another area. Behind you are a set of large metal doors. Back off by hiding behind the shelves opposite the fuse box as the guard will investigate why it's switched off. Head to the right and follow the wall around and on the right wall you will see a fuse box to interact with it. Keep hugging the right wall and you will see a large metal grate dividing the room with a guard sat on a chair on the right of this metal grate sneak past this area. Edge forward staying in cover, hugging the right wall so you can hear the guards talking, eventually one guard will walk towards the fire where 2 other guards are stood. So now the right side of the area of the train should be clear. Now look to where you switched off the light on the crate adjacent to the crane, he is the next guard. Follow the guard walking towards the room where you switched off the fuse box, he is next to remove (if he has sat down, hug the right wall to be able to knock him out) and then to the left of the front of the train is the next guard. Wait till the guard who was patrolling has his back to you and take him out. Now you can carefully move back and start taking out these guards to make moving easier.

When he does that, wait till the guard starts talking to the others to encourage them to work and use this as your opportunity to turn off some lights, switch off the light on the small crane and the lamp on the box adjacent to the crane. You will hear the boss who was previously on a crane telling someone to get the others working. Now hug the right wall and make your way to the boxes to stay hidden (making sure you keep them on your left). Make your way to the front of the train and sneak across the right side of the room, being careful not to be caught by the single patrolling guard. (When you are going for the kill achievement there are a few which will be in vehicles in this area make sure you check every vehicle and corner within this room to ensure you don't miss anyone.) Turn right and you will see a guard walking on your left, he will walk up to the far corner and start smoking, sneak behind him and take him out. Exit the room and see a guard walking left, he will start to grind some metal, take him out. Now open the door look to the right for a fuse box and interact with it. Head back to the room with the intercom to find a diary on the desk.

In the room you came from is a safe key pick it up. As soon as you hear 'copy that carry on' knock the guard out. Head down the stairs and listen to the guard on the intercom for a moral point. Wait till the guard at the end walks down the stairs, then move to the right of the metal detector and knock out the two guards. In the corridor there are three guards and a metal detector.

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