 The 9th Parachute Battalion , part of the 3rd Parachute Brigade attached to 6th Airborne Division , was given the objective of destroying the battery . However , when the battalion arrived over Normandy , their parachute descent was dispersed over a large area , so instead of over 600 men , only 150 with no heavy weapons or equipment arrived at the battalion assembly point . Regardless , they pressed home their attack and succeeded in capturing the battery , only to discover that the guns were of a lower caliber than expected [ Czech @-@ manufacture <unk> ] . However , these still had the range ( over 8000 metres ) to hit targets on Sword Beach and in <unk> . Using what explosives they had been able to recover , the surviving 75 men tried to <unk> the guns . 
