Patch Notes v1.4
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-Increased brightness.
-Major code optimization and re-write.
-added AK wallbuy.
-decreased first door cost from 1250 to 1000.
-removed Origins Panzers.
-Maximum ai increased from 44 to 48.
-Removed Vulture Aid.
-First round spawn for Panzers increased from 4 to 5.

Patch Notes v1.3
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-Significant code optimization and method threading.
-Added additional messaging for the challenges.
-Zombie Blood time increased by 60%
-Font color change for challenge hud text for better visibility.
-Perkaholic award requirement decreased from 50 to 25 challenges.
-Added additional clipping.

Patch Notes v1.2
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- Bug fixes regarding sporadic 'Connection Interruption' issues.
- Increased zombie_ai_limit from 32 to 44.
- Increased/improved lighting.
- Audio cues for the free perk shootables.
- Fixed a bug that would award the free perks to only the host.
- Fixed a bug that would drop multiple powerups for 2+ players.

Patch Notes v1.1
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- Changed 'Hits' challenge to 'Grenade Kills'.
- Lowered zombie_ai_limit from 64 to 32.
- Changed Escargot wallbuy to PM63.
- Fix minor clipping issues.
- Added additional in-game text to guide towards the challenges.