addEventHandler("onMarkerHit",root,function(elem,dim)
if getElementType(elem) == "vehicle" and getElementData(source,"bullet") then
    local damage=getElementData(source,"damage")
    local hp=getElementHealth(elem)
    setElementHealth(elem,hp-damage)
    print("taken damage")
    destroyElement(source)
    print("marker destroyed")
end
end)