Ok, the thing with those smoke rockets is that they have to fly a certain distance before hitting the ground or the somke doesnt work. As for the colors, you can just pull the script out of the pbo, and edit the script. Im not sure what they use tho. If it just camcreates a smokeshell, you can change the color, or if its the drop command, or I think (Knowing BAS) that its another one of BAS's "fireplaces". And to change the color of that, you would need to modify the addon its self.