If you are a West Virginia resident serving in the U.S. Armed Forces and stationed outside the state, one of your vehicles is exempt from West Virginia property tax.
Apply through the county assessor’s office in your West Virginia county of residence, not the state. Ask them which of your vehicles to designate and what their filing dates are.
Your orders showing you are stationed outside West Virginia, proof of West Virginia residency, and the registration for the vehicle you are claiming.