Something that grated on me and which I'm sure could be fixed without too much hassle are some points of organisation. Little things like the list of success results going success - critical success - failure - critical failure. If they were organised from most successful to least or vice versa they'd be easier to look up and make sense of instantly. Putting the rules for demolishing structures in the bestiary may make sense, but dents should be defined there (or somewhere else in the bestiary, with a page reference back to that) rather than referring back to page 175 of the rulebook. References between different books should be avoided IMO.