Zeta Series

The Zeta Series was a co-op series between Big Daddies and Big Sisters that was halted by Sofia Lamb due to the unpredictable nature of the series.
==History and Current Status==
The Zeta series teamed a single Big Daddy with a single Big Sister. These teams were called Zeta Couples.
Category:Big Daddy
Category:Big Sister
Category:BioShock 2