Ok, I will try to deal with them. Finally got a gun turret to build but how the heck do you load ammo into it?

Ok setting peaceful_mode=true doesn't seem to work as I am still getting killed. Yes, I killed offed units.

Also, where is this peaceful checkbox? I started new campaign and still don't see a way to stop them.

I have to agree that fighting of "bitters" (whatever they are called I find extremely annoying. Now that I have read there is a checkbox to turn them off I will try again. My suggestion would be to not have them at all until you build a pistol. No pistol = no enemy.