In the ancient version of Half-Life 1 there was a mod called Half-Life: Zombie Edition where you quite literally played as a zombie there were full blown features such as playing as a headcrab when your body died and being able to attack and claim a new host and become a full zombie again, there was even a skill menu that you could put points into and to get said points you needed to eat bodies and people you just sliced to pieces with your freaky hands such an AWESOME mod, my request is this I'm sure y'all saw it coming but I want some really good mod devs or any mod devs to remake that awesome mod for this awesome game. If anyone needs some reference of the Zombie Edition mod here is the link for Moddb website

https://www.moddb.com/mods/half-life-zombie-edition