Alright, I yesterday I started a fortress, and now that I've set it up rather decently, I'd like some advice/help I can't seem how to figure out how to make my Militia/Fortress Guard patrol the halls of my Fortress to make sure that those filthy Skulking Kobolds don't get into my stockpiles. I've got a bridge that requires one to be a flyer to enter the fortress when it is Retracted, (To help make it so that the Goblins won't be able to enter without my permission, and to check to see if any Migrants are Vampires) and various other defenses, but I don't have any decent defense against Kobolds, and I can't afford to lock down the Fort constantly, because one fifth of the food my fortress survives on comes from hunting the local wildlife. But I Digress... How do I make it so my Guards Patrol? I set them to patrol on their activity, but I read somewhere that you have to put it so that they patrol from one point to another. Is it Possible to have multiple points for them to patrol? Like say, from the Entrance to the Living Quarters, to the Cave Entrance, and then all the way back to the Workshops and Stockpiles?
And for my second question... if I dig into the side of a river and have it enter into the fortress via tunnel, and I put grates over the exposed part so that no Gators/Crocs/Giant Toad/Carp/Zombie!Carp can get into my fortress, will the fishermen be able to fish from it? Or because it isn't the river proper, are they unable to fish from it? Also, how do I catch Cave Lobster? I know you need a trap, but how often do lobsters go out of the underground lake and onto the traps?