[JadedRadiance]

A lot of real world banks do that. They require you to have a minimum amount in your account or they penalize you.

The same policy could be implemented here. If you don't maintain the minimum amount in your gang vault to war, you won't be able to upgrade your gang, allow any new members to join or do anything until you meet the minimum again.

To prevent people from just depositing the money to upgrade, then removing it so they don't get warred on, similar to the name change policy, there would be a block of some sorts to prevent immediate deposits and withdrawals from the gang fund.

And how much the minimum would be would depend on the number of slots in a gang. A gang just starting out may only have to maintain a $500 dollar minimum with the minimum increasing for every new slot.