Hello !
I've heard that you already wanted to make different zombie types in the combat gameplay, but what if we could find these zombie type in the main medical gameplay ? Having for example weight change/skin color, nail/teeth evolution or loss, abnormal partial hair loss or EKG/EEG and even bone structure via X-ray specific to a variant of the virus? These advanced diagnoses (on alive or dead subject) could lead to the collection of tissue sample or vials for research purposes!
Since it's already late in the developpment, maybe an idea for DLCs?