Cute tanks

Hi guys! Me and my friend programmer are reopening our abandoned project. Freetoplay arcade web shooter. First we will run it on the Facebook and try to pass Steam Greenlite. Project need a lot of player to test and we are looking for them in advance. Follow us to wach, to affect development process and not to to skip first testing https://www.facebook.com/shootbots/ 
This is our first indie project and we will be grateful for any advice and opinions.
Player design
Skreenshot from unity scene.
Ideas of some features