I already posted this... but in the wrong section since I got a wrong redirect (as I think!). It's an alpha release so I post it here again:
This is my first map... I started it quite a while ago as a school project. However, I thought it would be a pity if I just wouldn't finish it. So there it is! It's got a few flaws, many things I should've done different but I think it's a quite ambitious project. It's a great map to play Invasion on. Please try it out and tell me what you think!