Part of the insanity of the Cold War, the Davy Crockett gun and W54 warhead gave atomic capability to the grunts on the ground. Yields varied from 0.01 to 1 kilotons, though with a maximum range of 2.49 the larger version must have been a suicide shot.
I’m thinking of using a Davy Crockett in a coming comic- an alternative history tale where Berlin was nuked at the end of WW2 and Cold War tensions are that little bit harsher. I might also model it. This guy put a lot of work into his Davy Crockett on the back of an M151A1D. Maybe he should have just got the kit from Sharkit.