|The following is based on content cut from Yuri's Revenge and has not been confirmed by canon sources.|
It was supposed to do the same ability as the chrono legionnaire, erasing objects from the space-time continuum, but it is possible that they were not able to teleport themselves. Also, it can be assumed that it had some sort of a storing limit, as the concept art shows one empty sample, while the other is full.
Despite being cut from the game, it was erroneously mentioned in the description on the back of non-American game boxes.
Mental Omega appearance
In Mental Omega 3.3, the chrono prison appears as a special vehicle that is available for the Allies after they infiltrate an Epsilon (Yuri's faction) battle lab and an Epsilon Construction Yard. It is capable of "abducting" enemy vehicles by warping them away, which can then be released under the player's control. However, it cannot abduct most larger vehicles, and is powerless against non-vehicle targets.