Vampire Bloodsucking Change

[Embolism]

I hope the blood transfusion system causes horrible ailments to occur with a transfusion mismatch so people incapacitate themselves trying to shoot up AB chaplain blood to stay safe

I was recently thinking that when transfusions get added the ability to pick your bloodtype should be removed, because otherwise 99% of the station will have the default bloodtype and the other 1% will die whenever they lose blood.

Exactly. Everyone will choose to have AB blood.