please contact Ubisoft support Directly for your region
as you never mention what platform or game version or region
you can find phone number\ support options \ and support hours information @ https://support.ubi.com/en-GB/Contact#en-gb
as far as i know hurk pak was the limited Pre order edition and GOLD only here in the USA on digital sales
was 3 missions added to the game .. the gold version added other things
and no you only get the hurk mission after completing other missions .. they do not come all at once ...
again your gonna have to contact Ubi Support ..this forum does not = Ubi support
you posted in a forum to get help from other members of the FC 4 community , we can not answer your question