This is 3vs1. The one that is alone, gets a titan Gaia. The titan is modifed to be weak at begining. But when it dies, it comes back stronger with better stats. Its Basicly a race against time.
The single player should balance when his titan should die and when it is needed to defeand the base.
The other 3 players get 1bolt each. The bolt will instantly kill the titan but only for few seconds. Then it comes back stronger than before. The bolt should be used as last resort.
Also the walls and towers are stronger so the titan can't hack so easly. pop limit for towers is 15.
The towers from player2 are normal unchanged, but walls are also stronger.
If everything else fails, Each player has a statue on a hill that they can destroy. By doing so they get a guardian who only lasts 100s. Then it dies.
I tried very hard to make the map interesting and balanced. If you think it is not, let me know and tell me why.