I've read about a 300 meter arming range. I should correct myself and mention that I fire at a little over 300 meters due to the arming range.
I'll be hitting the ocean again tonight. I'll double check the sim settings to make sure I'm not cheating too badly. I think I'm running the sim at 75% realism. I like the cameras working. I also have auto firing enabled but still do the firing myself.
Not to put you folks at this web site on a guilt trip, but I'm neglecting my other hobbies due to this magnificent simulation.