I have finally completed this game and managed to upload the final build! There are still some bugs but they are rare bugs and I wasn't able to find any solution or even a reason to those bugs!
So for now this is the final and only release, and as soon as I finish uploading it to different stores, I will start working on the next game! This game originally was just for learning unity's workflow, but then I decided to publish it too! But my next game will be my actual and proper publicly released game!
As for this game TankCity you can download it from here on IndieDB
Or you can go to slideMe!