Awesome mod. I would make the torrents shoot faster, because its really hard to hit banshees when the rockets move so slow. Also, I dont think the ghosts should really fly; seems pointless to me. Other that that, awesome idea.
Turrets are awesome in Chill Out, and I like how you made them shoot sniper rounds. Is there anyway we can get the mod with only the turrets added? Chill Out looks kinda wierd with a green floor in some areas and stuff.