Also to edit the Missile effect,just edit the effect created at unit. The default is FIREBALL, if you want you can just make a variabe and make it call an effect depending on the unit which cast it. Although it will be a tiny bit slower call/less efficiant, due to another condition check.
Also i think you/we if we do work together should plan on the size limits of the maps to be used. Depending on how long we/you want the campaign. So far you have used 5mb/60mb. So you can make a maximum of 12 maps. Will this be a consistant 5mb or will it be distrubuted differently. Considering the 5mb is with a small map. With only a few units and data. Does this mean you will be hitting 8mb at the end of every map?
Also i think you/we if we do work together should plan on the size limits of the maps to be used. Depending on how long we/you want the campaign. So far you have used 5mb/60mb. So you can make a maximum of 12 maps. Will this be a consistant 5mb or will it be distrubuted differently. Considering the 5mb is with a small map. With only a few units and data. Does this mean you will be hitting 8mb at the end of every map?