You can add a new map by clicking the edit button or "create new content", in the upper right corner of the page (if you are logged in).
This map is nice, good looking even if it is too flat somewhere, but the layout is not very interesting and that's always the same scheme. Without the radar in capture mod, it's confusing. Maybe a diferent light color, or an other set of texture would be better. Moreover, there is two pairs of very close bases, that give bullets and shells. In regen capture, it doubles the speed of health and armor recovery, have you think about that?