Not US Navy, but my dad is retired USN. And, he makes USN scrambled eggs. You heat the cast-iron skillet, crack the eggs directly in the skillet, and move them around (I use a fork, but on the big griddle, they just kind of shovel them around). No cream or milk added.
The eggs were made that way on Boy Scout camp outs too. The boys did a pretty good job on scrambled eggs. Pancakes on the other hand were a challenge for them. They always ended up with "Oreo pancakes."
No, not chocolate....black on the outside and creamy in the middle!