As you can see the warrior model has changed quite a lot since those days, so they would not fit even if I had kept those skins.
Yeah, he looks less detailed then the current one.
The source files are all in layers, so changing the colours would not be too difficult, the main problem would be the blended colours.
There is a technical complication though, in order to try and prevent players cheating when spotting cloaked lictors the game checks that the client and server are both using the same set of skins. So unlike the marines it's not so easy for anyone to make and use their own variations in-game.
Totally forgot about the Lictor. So any skin would have to be done server side and client side, hmm that could be something that can be added to the menu to an update in the far future so players won't have conflicting files.