You could always run Vmap extractor and AD at the same time mate. But personally I keep a Pre-extracted Copy of maps somewhere in my computer so everytime I do a repack i don't need to waste 10 mins extracting maps.

Oh btw, Vmaps = 20 Hours~

80% of Vmap extractors crash after a while. So i don't bother with Vmaps, its not as if Collision actually works =/