How to increase the size of the map (in-game world).

Pls help me, im a starter.
Only got a thing driving around but i dont know how to make map bigger.

So that the screen follows it.

Ok, nvm. solved it.
But now got a new problem, how to make the tank shoot?

Use an emitter to make shooting objects.

Can you exactly draw how to do this, same as with the health bar issue. my ships have a health bar and can shoot, try it out, see if it works for ya!