Well this is if there are not multiple textures which would be great.
Looking at reach all forge maps look grey and dull, personally the forounner texture does not really fit into halo reach as the main theme is human structures.
This leads onto my next point which is that the theme should be human, looking at a map like boardwalk, it has 5 textures max but the map looks great and fits into halo reach. Also swordbase has the same textures, and like boardwalk looks great.
Basically what im trying to say is make sure that the textures of the objects fit into halo 4’s themes(whatever they are) so that maps look nice and not like they should be in halo 1.