Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  IFUREAD2L8 | Normal | 3.37 minutes |
| (Co-op) l4d_airport02_offices | IFUREAD2L8 | Normal | 10.20 minutes |
| (Co-op) l4d_airport03_garage | IFUREAD2L8 | Normal | 12.22 minutes |
| (Co-op) l4d_airport04_terminal | IFUREAD2L8 | Normal | 8.60 minutes |
