In single-player, I decided to play through and go for maximum accuracy. When I got hold of the Bolt Sniper and took out the defense tower's guns, my overall accuracy stats dropped from 95% to 44%, and the weapon-specific stats showed I had fired the Bolt Sniper something like 60 times for zero kills.
That's not the only such glitch; I used the X-Pac Mortar on the final boss and OK, so it's not a precision weapon, but the stats say I didn't hit ANYTHING.
Crytek: there's not much point in having accuracy stats in your game if they're this messed-up. Can you fix this?