Battles taking place in the warzones follow a set of rules that are different then normal battles. Because of this the rewards for warzone battles are also higher since there is a greater risk involved.
Rules
1.) All warzone battles are considered to be death enabled which means your character can die even if it is against your will so enter at your own risk.
2.) All warzone battles are to be categorized as plot battles which means you gain more levels for participating and each battle shapes the plot of the site.
3.) You can only take part in 1 warzone battle at a time. Since you are only one person you can only be in one place.
4.) If your character dies you can make a new one but they wil have to start off as a Genin, however the levels gained from the fight that you died in will roll over to your new character.
5.) There is also a risk of being captured. If you are captured then you cannot post in your village for a week but you can attempt to escape from captivity and outsiders can help with this but it must take place in the village you are being held in.
Rewards
+5 levels for showing up in a warzone battle
+5 levels for killing an enemy ninja
+4 levels for completing the mission objective
+3 levels for capturing an enemy ninja
+3 levels for escaping captivity
+3 levels for defeating a higher level enemy ninja
+2 levels for fighting an enemy ninja
+2 levels for participating in a site plot battle
+2 levels for defeating an enemy ninja
+2 levels for being on the winning side of a battle
+2 levels for fighting on the disadvantaged side
+1 level for fighting on the side with more ninja
+1 level for retreating from a fight
+1 level for being on the losing side
+1 level for failing mission objective