- Head to the Northwest, going to the elevator sitting at the bottom of the shaft.
- Go inside and flip the switch on the left-hand side of the door.
- This will take you back up to the main area of Central Security.
- Once again, Central Secuity will have a number of COV inside, a simpler mix of them.
- From there, head to the South and back into the Yard.
- Reaching the Southern end of the Yard, turn to the West and through the open doorway there.
- Tina will be waiting inside this room for you.
- Approach her and give her the "ingredients" that you collected.