Thanks BardicKnowledge!
Jwatte: the large tiling area problem is one I’m keenly interested in. Some textures that look great on small surfaces look horrible when tiled on a landscape. The more unique characteristics a texture has (knots in a wood texture, for instance), would make it look bad over a large surface. Epic’s technique in a lot of the starter content mats is to multiply the diffuse by a macrotexture to break up the repetition. This works good on some stuff, not so much on others (I’m still trying to get my smooth mud to look good over large surfaces).
I’m not sure I know what you mean on #4? Is this an AO map that gets faded in when you get in close to the material?