Bukkit

• Fixed a zombies not spawning glitch
• Fixed the arena load bug where arenas wouldn't load upon start-up
• Added blood to players

Soon to come

• Hell hounds
• Programmable perks (possibly)
• Player statistics
• Traps
• Fire Rates
• Doors that open multiple locations
• Crafting special items
• Lots of bug fixes, tons..

Not a lot of "Known" caveats, but you will probably have lots!

• Auto Start timer might not work, just reload