We need to use an interface for the initial infected to vote on ZM.
Then we need another interface with total point value and individual point value for each type of zombie spawn action. It would be neat if the text that was unaffordable would be in say red, while the ones that can be purchased are green.
So it might look like this:
Vote for a Zombie Master
1-- Player 5
2-- Player 6
3-- Player 7
4-- Player 8
Each second ZM gets +1 point and he gets +5 pts when Infected Kill a survivor. Server would need to have versus rescuing available for balance.
The trick is to make sure you can't just use the z_spawn command at any time; we need it to only be available when the point values are reached. Then we can enable it for the user and disable after one use.