Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  T_ROB91 | Normal | 4.45 minutes |
| (Co-op) l4d_airport02_offices | T_ROB91 | Normal | 9.77 minutes |
| (Co-op) l4d_airport03_garage | T_ROB91 | Normal | 20.24 minutes |
| (Co-op) l4d_airport04_terminal | T_ROB91 | Normal | 6.15 minutes |
| (Co-op) l4d_airport05_runway | T_ROB91 | Normal | 8.91 minutes |
