Hello and welcome to the forum.
I’m not sure if you read THIS thread, but VCMI is not another mod (= scripts applied on top of the original code). VCMI re-writes the game from scratch, in order to give endless possibilities to future modders, who are currently pretty limited by the fact that we don’t have access to the H3 source code. This is a good part of the reason why WoG made little to no progress in the past years. But with VCMI we will be able to say that “the sky is the limit”, meaning that we could easily end up with 12 different alignments on the same map, 500 creatures, maps larger than XL, game playable in high resolutions, plus many, many other possibilities.
As VCMI does not build “on top” (like a mod) but recreates from scratch, of course in the beginning there’ll be “less stuff” and more bugs. It’s an unavoidable phase of any such project, but it’ll pay off on the long run… 
