I have, but I'm having a difficult time understanding how each are impacted (especially NESOP from what I've seen in the videos) by the fact we aren't in a circumstance (like a war) where we'll be needing to battle such as "Operate gun and missile-firing equipment used to defend the ship". Because the vids don't paint an accurate representation of day to day activity (esp if impacted from above, which is why I'm not considering any of the combat arms), I was hoping someone who works in either of the 3 could do a kinda basic breakdown of what each trade is actually like. 1 of those 3 trades I'm considering putting in my application so I'm hoping to have the one that not only suits my interest the most but is actually day to day accurate to the trade's page (and not at the very best what you could be doing like each video persuades). For example, I originally had armoured soldier in my application but upon realization how I likely won't be seeing war when I'm in (and therefore be doing very little of what the website and video showed me) that discouraged me from keeping it in my application since I don't want to actually be doing side duties like maintainence all day every day.