For the old OFPers this should bring back lots of fond memories of spoiled ambushes and lost firefights.
I was watching Video Test 1.wmv at time index 16:20 and the player lays on a piece of destroyed building, aiming "over the ridge" while prone and fires.
The sights show a clear path beyond the terrain under him, the tip of the barrel is most definitely in "clear air" and...
The bullets impact just below the character's chest! Again BIS? Is it that hard to have your player's bullets originate from the end of the barrel and not chest, head, whatever?
Just like OFP just because you have the enemy in your sights and there's nothing between your barrel end and the enemy.. there's no guarentee that your bullets will travel farther than 6" if you're prone near a ridge.