Ue4 landscape mask textures to blender?

So I run across a problem though I think it would be unsolvable, but just seeing if anyone has a take on this. I love UE4 but have a bit of problem, so I want to make an animation inside blender of the landscape I created in unreal with textures that I brushed on using UE node setup.

Would there be any way to transfer the maps, whether it be some sort of masking and whatnot. Though it seems blender doesn’t do well with making large scale landscapes with udim. I dunno maybe I ask if there is a workaround or a way to get landscape detail somehow in blender with masking.

What kind of animation or effect are you trying to achieve?