Nice work. Did it damged vehicles before? Do we might see it on other maps, may as pick up kit, to disable static guns or tanks and such?
Thermite was not that commonplace at all, a standard practice for the allies was to actually capture the weapon but if they were to be destroyed, it was normal practice to just blow the breech or the barrel with whatever explosives were available.
In fact on the real PdH, Thermite and the guns were both absent. The Rangers used explosives to blow the 2 guns that they did find but the guns did not fire a shot in anger during the landings and they were abandoned by the time they were found by chance.
IMO, the real story behind PdH was the tenacity of the German defenders from the 20mm Flak position and bunker complex which put up a stiff resistance for days after the landings. (both notable absentees from the map we play)