@ Vrav: It's just a rather flat door I'm making with nothing but textures and normals. Practising saving time through not baking on stuff that doesn't necessarily need it.
To be honest unless you're going to smash up those bricks you're probably better off just modeling it as a flat plane. That's gotta be incredibly expensive.
I'll probably push the grunge with another layer of wear, seeing how it's looking pretty bland with the corrosion ATM. Quick normal maps painted in PS on flat plane.