New Buildings

Every time I open the game and look at my camp I wonder about my crapy wall and those guys on the top, so my suggestion is: why we don’t improve the wall and the towers?

Improving the wall could make everything produce a bit faster once people would fell safer inside.

Improving the guys on towers could make the killing drop some better stuff like gas or tokens, or just more XP and tomatoes, in higher levels they could even do some automatic killing even when offline (working as an extra farm/tents.

Another cool building would be a bell or something outside of the camp that would allow us to have more zombies coming every hour.