I think this does not work anymore since a while.
Both teams have their own limit of construction material.
For me it is quite restrictive/boring without ladders.
Back then you could sneak in to open a gate, bypass an heavy defended position, cause some confusion behind their lines or chase achrers away from their camping spots.
Now you can choose between from two to four ways which are all defended.
There are no experiments to find new way, no surprises and less challenges.