for the bowl, get the drones as quickly as possible and build two of them. Deploy them on the trench, and after you deploy them the first time, build two more. You can then switch off with the pairs. From then on, you can just build and fortify.
Also, there is an issue with my battle screen. It does not let me look left and when a characters turn comes up, the screen automatically goes as far to the right as it can
It is a great game but there is one thing i really dont like. When i am traveling, i am just about at my destination when a swarm of 4 or 5 different robbers randomly appears, so i have to fight 4 or 5 battles before i reach where i am going
I dont know why, but im not a huge fan of this game. I tried it out, but it it is boring to me because i dont think there is much of a difference between some levels