So I love the Collecting Blood Feature, Allows us to do Blood Drives and Attempt to Supply most of our City from our players, But It would be Extremely Cool if blood bags with Blood Types cause acute hemolytic transfusion reaction if it wasn't a Compatible Blood Type Unless its O- (Universal) or a Blood Bag without Meta Data (Store/Blood bank Purchase/ Medical bags)..
I've Removed Blood bags from medical bags and Ensure All Hospitals & Ambulances have a Supply on hand, Its Created a lot of Interesting RP around EMS and Treatments, Our EMS already try and use a Correct Blood bag type but currently there is no Issue with a Player Taking one of an incompatible blood type.