But confess what? I think the original made more sense since he was escaping.. but then again he was put in the cell after escaping.. hmm

Occam's Razor would suggest that the real word that makes sense in context would be more correct than a non-existent word that has nothing to do with the rest of the scene.

I'd say that he's meant to confess to trying to help muds escape and shut down Rupture Farms.