I started playing this game as a real newbie as I had never really played sub games before although I played SHII but never really got into it. I played SH3 for a few months before learning manual targeting, which took me a while to suss out - mainly because I got the AOB principle the wrong way round

Once I mastered it I played the game 100% all the way. But lately I have been real lazy and I use auto targeting. I guess I have mastered it and there was no new challenge to overcome.