I can't delete the ladder at the "front" of the outpost (the one near the guard post). It's static and kinda ridiculous that I can't get rid of it. I had to maneuver the base around it so it looks like it's supposed to be there.

Many settlements have static props that cant be deleted.

Im sure but that doesn't mean they should? Why is it necessary? It's not like i can "lock" things to it.