 The Commandos on Campbeltown now disembarked : two assault teams , five demolition teams with their protectors and a mortar group . Three demolition teams were tasked with destroying the dock pumping machinery and other installations associated with the dry dock . The kilt @-@ wearing Captain Donald Roy - ' The Laird ' - and his 14 @-@ man assault troop were tasked with inactivating two pump @-@ house roof @-@ top gun emplacements high above the quayside and securing a bridge to provide a route for the raiding parties to exit the dock area . Roy and Sgt Don Randall used scaling ladders and grenades to accomplish the former , and a head @-@ on rush to secure the bridge and form a bridgehead that enabled Capt. Bob Montgomery and Lt Corran Purdon and their demolition teams to exit the area . 
 The Commandos on Campbeltown now disembarked : two assault teams , five demolition teams with their protectors and a mortar group . Three demolition teams <a href='uninflect' title='1'><mark>were</mark></a> tasked with destroying the dock pumping machinery and other installations associated with the dry dock . The kilt @-@ wearing Captain Donald Roy - ' The Laird ' - and his 14 @-@ man assault troop <a href='uninflect' title='2'><mark>were</mark></a> tasked with inactivating two pump @-@ house roof @-@ top gun emplacements high above the quayside and securing a bridge to provide a route for the raiding parties to exit the dock area . Roy and Sgt Don Randall used scaling ladders and grenades to accomplish the former , and a head @-@ on rush to secure the bridge and form a bridgehead <a href='null_relcl' title='3'><mark>that</mark></a><a href='been_done' title='4'><mark></mark></a> enabled Capt. Bob Montgomery and Lt Corran Purdon and their demolition teams to exit the area . 
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