what do you mean mission failed even if i past 10 rounds?
Can you elaborate? What mission were you in :3? Also did your Exhaustion reach 100% perhaps?
I did 20round\10rounds but it say the mission failed
Some missions are currently infinite wave survival mode. For these you simply need to End Mission in the status menu and your game will be saved :D. It shows the number of waves for events like this in the top left.