The Citadel was also enfilading the battalions of the Imperial Camel Corps Brigade. Their company was held up by a machinegun, which was enfilading the line of troops. Gall kept up enfilading fire from the northeast. Tryon directed General Agnew to send out flankers, whose enfilading fire helped breach the barricade. The Continental and Pennsylvania navies provided enfilading fire against the Hessians. Gen. Romeyn B. Ayres had to take cover in a gully to avoid enfilading fire. However, their ranks were thinned by withering enfilading enemy fire and their advance was halted. Curtain walls were studded with towers to allow enfilading fire along the wall. These enfilading tactics took the Germans lying in ambush for tanks in the flanks.