The texture files are not attached to the models and there is no UV file, so you need to spend a lot of time setting these up and get them ready to import. Response from artist ranges in the 20 days for a reply.
STAR WARS - TIE FIGHTER COLLECTION
ALL ZIP ARCHIVES INCLUDE MOBILE, LOW-RES AND HI-RESVERSIONS OF THE MODELS IN THIS COLLECTION
COLLECTION INCLUDES TIE Advanced TIE Bomber TIE Defender TIE Fighter TIE Heavy Bomber TIE Interceptor TIE Phantom TIE Punisher