We'll update the plugin and different pet choices as part of Phase One of the big update next month.
No, it causes stupid drama that Staff shouldn't have to waste time with.
If you know where to look you can find an updated version to 1.12 with the updated pets ;).
The Infection plugin on MV is old and outdated (2014 last update), and there was players saying they would come back for just Infection on...
