User blog comment:Damac1214/Rumor: Map Pack 3 Leaked + Map Pack 3 Reveal Trailer coming soon/@comment-5882782-20130618100332/@comment-3228520-20130618135831

Nuketown takes place before TranZit. That is the only instance where Samantha Maxis controls the zombies in BO2. Dr. Maxis never controlled the zombies.