 According to Captain Robert Montgomery ( Royal Engineers , attached to No.2 Commando ) , Campbeltown was meant to have detonated at 4 : 30am , the delay caused , he believes , by some of the acid in the pencil fuses being distilled away . As the morning progressed , more and more captured comrades joined him in the German HQ . 
 According to Captain Robert Montgomery ( Royal Engineers , attached to No.2 Commando ) , Campbeltown was meant to <a href='been_done' title='1'><mark>have</mark></a> detonated at 4 : 30am , the delay caused , he <a href='uninflect' title='2'><mark>believes</mark></a> , by some of the acid in the pencil fuses being distilled away . As the morning progressed , more and more captured comrades joined him in the German HQ . 
According to Captain Robert Montgomery ( Royal Engineers , attached to No.2 Commando ) , Campbeltown was ment to done detonated at 4 : 30am , the delay caused , he believe , by some of the acid in da pencil fuses being distilled away . As the morning progressed , more and more captured comrades joined him in the German HQ .