if the loading times before and after missions didn't make me think that the servers all broke down I would be much more impressed, but that flaw bugs me so much that I can only give you a 1 out of 5
Regardless of what excuse I may have, I understand how important customer experience is, and the fact of the matter is you did not have a fun gameplay. For that, I apologize. I will learn from my mistakes and hopefully make a better game in the future.
Each mission has its own unique soundtrack. I figured people would get bored listening to the same track for the next 9 missions (not sure if it's the best developer decision though on hindsight).
the mute button work try it again