As soon as you spawn, turn to the left. Open the first door on the left (not the one with power lines leading inside) and go to the main hub. At the hub, unlock the door on the right which opens the path to Hallway A. Proceed through the hallway and find the small blue tunnel on the left. Follow it to another area with stairs that go the right side. Open the door at the end of the stairs to continue. Once past through that door, you will find Exo Room signs on the walls pointing in the correct direction. The final door to the Exo Room is inside the morgue and requires 1250 credits to open. Once through that door, drop down, turn 180 degrees and activate the control panel to unlock the Exo Suits in the center of the room.