Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  A Love Note | Normal | 3.40 minutes |
| (Co-op) l4d_airport02_offices | A Love Note | Normal | 6.61 minutes |
| (Co-op) l4d_airport03_garage | A Love Note | Normal | 6.31 minutes |
| (Co-op) l4d_airport04_terminal | A Love Note | Normal | 5.41 minutes |
| (Co-op) l4d_airport05_runway | A Love Note | Normal | 6.62 minutes |
