Hinterland

Seems a bit too large for 3v3 gameplay.

My initial advice would be to decrease the scale and increase segmentation/cover. Maybe the flat and open areas could have some height variation changes here and there to spice up encounters, as I can tell you from experience that large flat areas tend to create stale gameplay.

Take picture 2 for example. If you just simply raised the area around rockets and added small ramps up to that platform, gameplay would suddenly become more interesting around rockets. You seem to understand what I am talking about with the ramps in picture 6, but the map needs more of this in my opinion.

Finally, I would work more on the aesthetics. Im not sure how many objects you have used, as I have not walked through the map in game yet, but I am willing to bet you could really spice up the look of the map with more dark objects and contrast throughout the map. Once again, take picture 2 for example. You could simply use teleporter frames, railing, and other black objects to create contrast, as the area is mostly 1 color. Dark objects also start to look out of place when there are only a few here and there, like in the second and fourth picture.

Anyways, best of luck!