1. forbidden zone in homestead seems to be just there and not accessible. maybe something cut from the production, or left for expansion, future DLC?
2. throughout the game, you can find some chests; they will talk to you, giving some riddles about numbers; if you find them all and figure out the riddles, you can get the chest open. I've found two or three, but never bother to finish this side-side quest though:)
