I was showing off the game to my brother the other day and I whipped out the sniper rifle and sorta hurt someone. After hyping it up a bit, it was unimpressive to say the least.
Well, I reloaded, switched back to my usual rifle and splatter ensued for an appreciative audience.
Which weapons give the head splatter/headless corpse effect or is it a function of the amount of damage delivered? (or something else altogether?)