If you have an idea and some modding skills, make it a sub mod for ACW. The ACW team will help you in your effort. If you lack of modding skills post your idea as a WIP, maybe some other fun will make it a submod.
After you make your sub mod, if a) it works with no problem, b) you support it, it will get the official award of ACW Sub Mod and it will be included iin ACW as a submod, addon, etc.