I played against someone and he said the game is stuck on one of my characters, Boris. On my screen it said it was his turn, so no one was able to move.
Second game I played, Boris fell out of the screen from pushback and died when there was clearly enough ground to walk on. I guess it's because his speed per frame was bigger than the amount of ground there was left. Maybe it would be possible to have higher fps so you can reduce the movement speeds?
Also, the grenade challenges were ridiculousely harder than the rifle ones. I got gold in all the rifle challenges in a few minutes but got stuck on first grenade challenge with silver.
Apart from that it was very fun :) good job