|The subject of this article is from previous version(s) of Mental Omega, which might contradict current information and are to be taken as reference.|
The Comet Fence was replaced by the Coordnode in 3.3.
Since the Comet Fence is removed prior to version 3.3, all of it's appearance are either removed completely or replaced by Concrete or Allied walls.
- The Comet Fence makes it debut in Idle Gossip. It blocks the path to the Euro Allies' Radio Tower and must be powered down to proceed. After the first objective is complete, it will self-destruct.
- In Panic Cycle, Comet Fences surround a certain perimeter of SteinsTech Laboratory and the Chronosphere. This is also the first mission where it's buildable.
- In the cooperative Attack on Buggy, several deactivated Comet Fences are located around the map near damaged barricades. An Allied Commander can capture the nearby Power Plants to activate the Fences and its nearby defenses.