Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  yuletide | Normal | 4.48 minutes |
| (Co-op) l4d_airport02_offices | yuletide | Normal | 9.88 minutes |
| (Co-op) l4d_airport03_garage | yuletide | Normal | 8.19 minutes |
| (Co-op) l4d_airport04_terminal | yuletide | Normal | 3.84 minutes |
| (Co-op) l4d_airport05_runway | yuletide | Normal | 5.48 minutes |
