Ok guys, for these Themes, instead of just making them reskins of the current weapons...
why not make them have some sort of variation according to the theme. For example, in the Sand Storm theme, all or some of the weapons might be focused more on fire rate and clip size, although it doesn't have to be that certain focus, we can decide the focus. Also, WHAT weapon variations are to appear in ALL the themes? What weapon variations only appear in certain themes? What about special weapons that appear only in a certain theme?