Thanks for the change - we will look at it and give it a thorough testing - will take 2 weeks as I expect a new computer and have to do a lot when it arrives ...
Concerning the reviving problems we came across two problems (well, we play more than 5 hours when we meet - so maybe we are really sensitive even for rare problems ;).
The 1st problem I mentioned above is: After being revived, a player is sometimes unable to shoot or use either weapon PERMANENTLY. Other than restarting, this can only be fixed by having the other player die and be revived by the "weaponless" player. This happens only rarely in Endless Mode but when it does it's a real challenge to continue the run.
A second problem - which is extremely rare: When a player tries to revive the team mate JUST in the very moment he disappears (I am slow at times :), the game does not register his death correctly. The "not quite revived" player disappears (as if he had died) but when the other player dies too, the game still assumes he's there and displays messages like "Hurry Up!".
Again, this does not happen often and is not a big problem since you can exit manually.
But it does show our engagement with this fantastic game - and now playing with gamepads the play time increased a lot! :))