Can't play it. Once I start.... I will NEVER be able to stop, too OCD foe these things. 
This might be the cure for that; get hit by artillery, run over by tanks, mangled by machine gun bursts, sniped, bombed, strafed, chewed up by grenades, shot by your own men...you might be able to stop.
So true! Unless you're a sadist, then you keep coming back for more. 
I'm sure there are some common mental predispositions involved, but this game has satisfactorily knocked most of them out of me. I just play until my side wins or loses or I've had enough or have otherwise slaked my thirst for mayhem. So a few nights ago (on Purple Heart Lane) I thought I was at the start of a good run. I wasnt' a SL. I had my M1 and I'd set out my ammo box and thrown all my grenades. I was on the flank of the last German position and the EliteTruppen were definitely trying to come around my way. I was about to get up to the top of a small embankment and do some satisfying shootin' when (right on schedule) a German appeared at the top of the bank...maybe thirty feet away. we saw each other at about the same time...I might have been a few miliseconds ahead since he was high up against the sky and I was climbing the bank. We fired at almost exactly the same time. I got off 4 or five wild shots and saw an amazing arc of blood rocketing out of his head as he went down out of sight. He had fired some sort of automatic weapon and nicked me.
That looked like a kill to me, but I've learned to go elsewhere under such circumstances since nothing quite annoys the Elitetruppen like shooting the point man. So I ducked off and patched my nick. I was contemplating looking for more trouble when an artillery barrage clobbered me. So...having had a nice shooting scene and been blown to bits, I was in a satisfactory state of postmortum bliss and I quit.