Part 18

After a cutscene (a non-interactive cinematic the game plays automatically), start in the Castling Insurance Companies Construction Site - Condemned Building. Jump over the counter on the left, turn right, collect painkillers from the red box near the door, and exit through the double doors.

Head right and enter the long corridor on the left. The floor will collapse halfway through. Enter the door on the right.

Proceed through the hole on the left-side wall. Shoot the explosive canister on the table to create a hole in the wall.

Jump through the hole onto the beams and follow them to another doorway at the far left corner. Enter and head through the corridor on the right.

Go down to the level below and turn around. Go to the end of this corridor to find another broken floor.

Drop down and kill the two cleaners waiting on the right side below, staying to the right as the ceiling will collapse on the left.

Go through the only door and head right. Kill the cleaner in the middle of the passage.

Turn right near the end to find a double door. Enter the room and take cover (press the cover button to crouch behind walls or objects) behind the counter on the left after killing the cleaner on the other side.

Shoot the explosives on the right side of the room. Kill the remaining two cleaners and collect painkillers from the red box on the counter.

Equip the MP5 and go near the hole on the right. Kill at least three of the four cleaners in the room below using the corners of the hole and the MP5's scope.

Drop down and kill the remaining cleaner(s). Drop down again through the hole on the ground to the floor below.

Go through the double door and check the long corridor on the left.

Take the long corridor on the right. Halfway through, go through a big hole on the left side wall.

Continue forward through another hole in the wall on the upper side of the room. Keep running straight.

After a cutscene, you will be in the Castling Insurance Companies Construction Site - Building (Mona Sax). Look up and shoot the cleaner on the second floor to the left.

Go to the middle and head left to find a doorway. Enter and climb the staircase. Kill the cleaner at the top with a shotgun and go one floor down.

Equip the Dragunov and go through the doorway. Look up on the balcony on the other side of the walkway to find a cleaner. Snipe him.

Go to the other side of the room to find a doorway. Go up one level and enter the door. Quickly hide behind the boxes and snipe the cleaner on the opposite side balcony.

Go back to the door and save.

Go up the stairs and come back down when you hear gunshots. Hide behind the boxes again and look towards the doorway. Kill the three cleaners that emerge with a shotgun.

Head to the top of the stairway, equip the Dragunov, and go through the doorway. A cleaner with an Ingram is waiting on the left. Stay near the wall opposite the door and let him go to the elevator on the right.

Peek around the wall on the right and snipe him. Take the elevator to the floor below.

Check this floor for painkillers and enemy weapons. Go through the door on the right marked with a 'DANGER' sign.

Quickly take cover behind the wall on the right side. Kill the two cleaners that come for you with a shotgun.

Snipe the cleaner at the far end of the corridor with the Dragunov. Go forward and enter the first room on the right to find another cleaner.