Erm, it IS the Warlock from INF. He's reskinned it.

The original is done in the middle-grey Deimos tex, with windows on the superstructure, IIRC...
It is, as kasperl said, in need of lots more textures. The thing is >4k long! If you're gonna use a tex like that, it needs to be much smaller, and higher resolution, so the thing looks as big as it actually is....
It's probably not a great model to try and reskin in any similar way, to be honest. Try using an entirely different texture. With such a high hull strength (a bit too high IMO - that's harder than a Sathanas!), you could try and make it look like it's made of some exotic material (rather than steel plating).
This is just a random idea, but try and make a texture like the big ships on the Independence Day film - dark and heavy-looking.
Just an idea. Good luck with it.
