Patch 1.13 - Game ending bugs, Arcade difficulty curve fix

It's been a while since my last patch. Thank you all for your patience.

Bug fixes

• Game ending bug in Arcade Mode that has been reported in several discussions and reviews. I have isolated the cause of the bugs, but haven't tested the fix long enough to guarantee a 100% fix.

• Arcade mode difficulty curve has been fixed. An overlooked bug that caused too many tanks to spawn too early has been fixed. It should be easier in the earlier rounds now, but the game still gets very difficult after a few rounds.

Future updates

• Adjustments to Versus mode, to prevent the games from dragging out too long. Especially with the number of rounds required to win the game.

• Arcade mode boss fight. To those who have reached the boss fight despite the bugs, I applaud you. There will be a balance update to this boss fight so it'll be a more balanced fight.