thanks nedd3h.
The bots should use the route over the wall in the version you have. It's pathed and routed for the engineers. In version 1.02, I've set the routing so the engineers will only use that path now as it's probably the safest / quickest way to get there.
I've also tweaked the nodes back at the documents so they jump up on the table a bit better.
v1.02 is
here