From their tops, the cannons would have a clear line of fire in enfilade over the bottom of the ditch packed with infantry transforming the narrow space between the wall of the ditch and the ravelin in a deadly place.
Reinhard, with his patrol of ten dragoons behind him, started to went on the bridge which crossed the ditch towards the gatehouse in the middle of one the curtain walls. The bridge was divided in two sections one that allowed to access the ravelin in front of the gate ran parallel to the face of a nearby bastion, so the defenders could fire at pleasure against any assault force trying to approach.
A sharp curve on the ravelin, which would break the impetus of any charge and create confusion, directed towards the second section with a drawbridge at its end that, once raised, would make impossible to reach the