Xmls related to spawning, looting and behavior of npcs

= entityclasses.xml = Here, every entity of the game is defined. The player, the zombies, the hornet, the animals, the cars, the minibike, the plane and even the supply crates.

If you want another zombie other then the cop to puke, you need to add this line. Without, the zombie has no mesh to puke from, and in result he would have to dry heaves without puking...
 * property name="RightHandJointName" value="Bip001 Head"

= entitygroups.xml = Yet to be explained

= spawning.xml = Yet to be explained

= loot.xml = Yet to be explained

= phsysicsbodies.xml = Yet to be explained