Game engines like UE4, Godot, Unity and UE5 already contain or can easily add shaders that allow procedural blending of meshes into the landscape. This is an incredibly useful feature for level designers and artists. Good use of this shader can help create more realistic and beautiful environments. Currently no such feature exists in Reforger which is quite disappointing. Examples below.

Note Reforger's current engine implementation is on the left in the first image.