Okay go ahead here is the overview

(keep in mind I'm not Team black and not a l33t ms painter.)
the map size is either 600x600 or 400x400 (its big), the tiberium obviously isn't just on top of the pavement its forced up through it, the black X's are wrecked buildings, the red X's are the start points. the black blobs by the bridges are those neutral gun turrets. the bridges are metal and the little black fuzzy things on the grass are trees. to make it easier here are some screenshots of the GDI mission the map its based off:

