This is an interesting debate, but I think it misses the most important point: cost. The Navy can buy thousands of Xbox controllers for the cost of even a sing

This is an interesting debate, but I think it misses the most important point: cost. The Navy can buy thousands of Xbox controllers for the cost of even a single bespoke controller. The US has on the order of 100 submarines. Replacement controllers for the lifetime of each submarine -- even multiplied by 10 -- is a hilariously small cost compared to the alternatives. So buy 1,000+ Xbox controllers and keep them in a warehouse. Problem solved.