Having this idea for quite some time now, I finally got it into a not-so-mindblowing shape that you can participate.
It's basically a classic 5cp map with a layout that is quite to that of a very old map, cp_orange X; I played that map several times back then and always thought that it is quite sad that this cool map (because of the layout) never got finished properly. Therefore, I thought of some rocky mining valley with some tunnels and extremely much high differences (more than orange X had) for an all new, vertical gameplay.

Starting with the spawn, you'll come out of a Dustbowl-stage1-ish cave that has two exits: a lower one next to the last cp and a high one, which is a quite high battlement from where rocket jumps and sticky jumps towards 1st and 2nd cp are possible (2 stickeys maybe even till 3rd).
Running out of the lower spawn door, you'll have to get up a small hill to cp1; this makes it easier to defend.
Walking downhill again towards the 2nd cp (which is the lowest point of the map) you'll have to enter a hole that is knee deep (or deeper) with water, maybe comming from a waterfall.
Height differences Graph:

The way to the 3rd cp goes upstairs. very high upstairs. I thought of the middle hill as a giant swiss cheese, a mountain with many tunnels inside and maybe 2 ramps on the outside, all leading up. it's like the badlands spire, but double its height and 3 times its size. just huuuuuuge.
The map is mirrored, so the other team doesn't get any disadvantages.
Layout:

Since I have not clue how map making works i'd like to ask somebody here whether he (maybe even "she" if it exists here) may have a go at it. it would be a crappile of work, but imo worth it.
Thanks.
I'm allways available for questions, testing and else, just msg me. and YES it is ms paint, and NO you shouldnt laugh about it.
EDIT: Picture: the green squares are boxes or trees, however you want. the cut blue line should be some kind of barrier, maybe rocks or trees; should be as high as the battlements. the structures bottom left an top right are mining buildings with an accesible roof and a sealed mining shaft.
Those vertical lines on those other lines symbolise where the higher ground is.