So if I get this straight, if you have the regeneration power you reject all but Deltaware cybernetics. If you character has Cyberware that isn't delta (Like some alphaware at chargen) and the character gets infected with vampire during play (which gives you regeneration), does his body immediately reject the already accepted cyberware?
The regeneration power notices there is something missing(cyberware and bioware replacements) and tries to repair it.
- either the ware is close to the surface and might get spit out, or
- if deeper inside, it stays in the body, with the regeneration occurring around the ware, causing the ware to cause eternal pain, until it gets operated out (GM decision)
But in either case all advantages of the implants will be gone.
Edit: Also its not 'immediately'. The process takes around 24 hours in which the character appears dead.
For mages, you also lose all magic, because your essence got sucked out. Then you awake new with 1 essence.