I was going to do add to my update, however as Woomeister pointed, there are several changes to that in the INF SCP VP (INF_2Patch.vp), all of the cruiser and above models which use tiles for the UV where totally changed to use just a single map, in other words seems like they used Render To Texture to collapse all the tiles in a single file.
Anyways, the models also change, and not only in UV mapping, some add newer turrets, this can't be done if you import all the entire set of turrets from old to new model, because the models have slight variations, you can see it with the Icelus. It is really troublesome...