I play DiD, adds a little intensity to the sim, I now think out my moves well in advance of my actions, it`s painful to lose an excellent crew, but in real life they did`nt come home. I have a Dicta Boelcke set of rules for submarines that remind me to stay out of harms way. I`ve learned them the hard way, and have had some very long careers, at the top of my list is the first rule: DON`T GET GREEDY.
