You can jump to the innermost level past the southern inner gate in Stonemist castle using the thief shortbow #5 skill. You may be able to do it with other class’s abilities such as the engineer’s rifle jump or other similar abilities.
By doing this, you can bypass the gate and head directly to the guild lord, I’m fairly certain an easy fix would be to prevent people from jumping on the turret’s base surrounding the gate.
Haven’t seen it be widespread but it needs to be fixed.
DH Yak’s Bend – Perfect Dark [PD]
Dr Hoppenheimer – Engi / Meowzir – Guard /
Mulcibur Nox – Ele / Mr Directed – Mes