Good thing I was the door man.
I was impressed with this training. Very disorienting and panic inducing the first time in, I'm sure, even in ideal circumstances of crystal clear water in daylight. But, I'm sure by the end, the guys could handle it. You just need to know the steps...immerse yourself (so to speak) in the details so that the global terror of the situation is held at bay.
I'm told that the military is looking for pilots, at least for fixed wing aircraft, but I imagine that may be the case for rotor craft as well.