Need to fix some stuff but its still brilliant game

As a costumer view i would like you to read my though in your game.Its excellent but need to be fix.
1-)Co-op does not have mod like survival you can make it round by round in that way more people will enjoy better because we dont have enough resources to make up good defence even we entered barracks.
2-)When you download map from Co-op and start to play it crashes.
3-)Also upload/download part lost connection sometimes you need to refresh it many times.
4-)If you can make another connection other then gamecenter it will be perfect.

Thank you for reading my description...
Thanks for the uptade.

DarkGunner56 about Block Fortress, v1.3.2