Wireless controllers at this distance (well, I am making an assumption that they were at least smart enough to put the receiver in range...) would be fine. The problem with the controller thing wasn't really that it was wireless, it was that it was a cheap controller that already has quality issues.
Most of the time you are experiencing interference is due to all of the other electronics and wireless signals propagating through the air around you. These would be absent in a controlled environment like a submarine, as you are below the level they would reach, and further shielded. Or would be, if it weren't carbon fiber.
Wireless controllers at this distance (well, I am making an assumption that they were at least smart enough to put the receiver in range...) would be fine. The problem with the controller thing wasn't really that it was wireless, it was that it was a cheap controller that already has quality issues.
Most of the time you are experiencing interference is due to all of the other electronics and wireless signals propagating through the air around you. These would be absent in a controlled environment like a submarine, as you are below the level they would reach, and further shielded. Or would be, if it weren't carbon fiber.