[8.3]. Mission 3 - Chicago: Stealth (3)

Begin by walking to the end of the ally and taking down the first individual with your fists. Peek around the corner and take out the next guard with a headshot (a shot that lands on the enemy's head, usually an instant kill) (a shot to the head that instantly incapacitates or kills an enemy).

Proceed around the corner to your left, descend the stairs, and pass through the doorway. Carefully round the next corner to find a taxi. Eliminate the guard next to it quietly, then turn right and take out the other guard. Avoid detection by the patrolling floating robot, as it cannot be killed.

Continue down the right side of the street until you reach another hallway on your right. Kill the guard within. Keep moving down the street to the limousine. Approach it and place the tracer on it to complete the objective of attaching the tracer to the limousine.

Run past the limo and turn right. You will receive information about a storm drain. At the end of the ally, drop into the storm drain, turn around, and go underneath the grates to find the drop point equipment. This completes the objective to retrieve drop point equipment.

Make your way back to where the limo was, continuing until you reach an opening in the fence that leads to a sewer. Clear the sewer of guards, then exit the sewer the way you came in. Go right towards the taxi and use the Reprogrammer on it. Wait for the taxi to crash, creating a vehicular diversion.

Go to the right of the crashed taxi and eliminate the guards. Proceed to the top of the stairs and place the Remote Mine on the concrete door, but do not detonate it yet. This prepares the escape route.

Enter the red hallway that was across from the taxi. In the next room, knock out the two civilians. Push the trash bin next to the barrels in the corner, then shoot the barrels to cause an explosion and retrieve the BombSpy from the ground.

Back up into the hallway and use the BombSpy to look into the next hallway where the trash bin was. Activate the BombSpy in the area with the guards to eliminate them. Walk to where you activated the BombSpy.

Exit this area and go straight ahead into the room across from the storm drain. Enter the giant elevator to complete the objective of gaining entry to the G5 building and finish the first part of Mission 3.