I fail to see how they could nade the opposing team. There is enough jet to maneuver around grenades. However, that may be a problem. But, I doubt this will be used in online matches anytime soon (or ever), so probably no big deal. About the shading, I think I'll work on that, but I won't re-release it just for that. My next map will be better shaded.
EDIT: Also, there are two SG's on the map that aren't visible from the screenshot. You should DL the map, then post suggestions.