after some research in ps4 game files I checked that there are some games that use DXT1 - DXT5 swizzled textures.
This swizzle method looks very similar to PSvita but with some artifacts as results, also the textures looks virtualized after unswizzle
the virtualization method used here is called PRT (Partially resident textures)
here are some samples from Killzone Shadow Fall.
the dds header in files is not original, was added by me only for preview the textures.http://www.mediafire.com/file/afdj2c5ug ... wizzle.rar
maybe someone can figure out this.