>>718117430
Feeling like an expansion to 1+2 because it was greenlit pretty late and given to another team because VV was already subsumed into Blizzard. Besides that, nothing really outside of not getting the full original soundtrack. THPS4 maps adapted to the 1-3 formula mostly work (though some of the objectives aren't made clear by the fly-through), new maps are all very good, secret crossover areas are decent easter eggs that are also extremely skippable/ignorable and get you back onto the main map quickly.
