| Map | Title | Author | Players | |
|---|---|---|---|---|
| CTF-Odyssey | Odyssey | 8-16 | ||
| CTF-OldSpaceStation | OldSpaceStation | 6 to 12 | ||
| CTF-OneWay | OneWay | 2 to 10 | ||
| CTF-OptiExtract3 | OptiExtract | 10 to 14 | ||
| CTF-Orbital2007 | Orbital2007 | Unknown | ||
| CTF-Orbital2007 | Orbital2007 | Unknown | ||
| CTF-Orbital_2-UT3 | CTF-Orbital_2-UT3 | Unknown | ||
| CTF-OrbitalPipes | Orbital Pipes | 8 to 16 | ||
| CTF-OrderOfMagnitude | Shrink Gun | Unknown | ||
| CTF-Oriental_High_Tide | Oriental_High_Tide | Unknown | ||
| CTF-OverBurner | OverBurner | Unknown |