i have heard a few interesting stories about the SCA during the cold war.
for example an aircraft carrier was being followed by a russian sub. having been ordered not to attack the sub (some admiral was afraid it might start a war) the captain figured he could still screw with the commies a bit. since he had a large number of sailors actively in the SCA he called them all to fighter practice on the flight deck.
from what i hear the navy is heavy with SCA members so it would be an interesting twist in games. for example a navy nuclear engineer thats deadly with a longbow and can make his own arrows or a navy seal that weaves baskets for holding gear or making traps.