Step 1. Go the Command Room and accept the Field-Op.
Step 2. Go to the Boiler Room (located under the Night Club) and walk to the left file cabinet.
Step 3. Puzzle found! You need to crack the lock. To do this, listen and look for the white boxes. Then when the empty lock comes your way, repeat and duplicate the pattern by pressing the space bar.
You've finished the Field-Op mission! Here's your medal!
With these medals, you can buy Elite Gear! Each item is worth a certain amount of medals.
Visit us next week for the new Field-Ops cheats!