Well, Another suggestion:
If on a certain region (not during fight) a maximal ammount of Persons are, They will switch into ghost mode, In fight however everyone\'s solid. Or what will be the fun of working out a strategy with your archers protected by your frontline warriors (In a guild war) if the enemies easily could brake trough your battleline without the need of fighting it.
Or if someone needs to be protected you position yourself between him and the enemym the enemy runs straight trough you and finishes him off,
I\'m not a programmer so I can just make suggestions, without knowing if they would be possible or not