Textures in Privateer 2 are stored without palette info, appropriate palette is chosen on-the-fly. My guess is those gifs in TABS.GIF are those palettes although gifs themselves use standard game palette. You can see by the names, for example CV-BL-GY.GIF means blue->gray. From that info I made...
If you emabrk on a mission to propely convert WC4 models and textures, be sure to use the right palette. I don't know if it was ever noticed or fixed but this has been bothering me forever in Unknown Enemy :confused: :
The texture with weird palette: The texture with right palette: