By the way, I'm not sure these assets worth their price in general. Comparing their quality to UE4 Marketplace, they do not hit those standards, okay they are at a lower price level, but imo not really suitable to be used in a commercial game.

I bought several years ago the Walls and Towers package, and those models look great individually in the pdf, but as you create a level, they do not match with each other in proportions, or if you scale them the texture proportions will be different. Shortly: it is not really possible to create a nice castle, so finally I used only a few items of it in my MapŰBuilder test levels. Currently tested again with UE4, and sucked a lot with the fbx importing, sometimes scale, sometimes material order has been messed up. In UE4 I replaced the repetitively tiled materials to use much better (free!) physically based rendering materials, but it was impossible to get a right scale to match my character! The models apparently designed individually and not due to an exact unit measure, just approximately, but it makes them totally unusable even in an RTS game where small differences are okay. As I see the videos of the newer packages, this proportion difference is still a problem, that holds me back from buying again even for such a low price. Sorry for the bad review.