As a result, the M16 — which requires pinpoint accuracy to be effective — requires two perfectly-placed bursts, instead of one, to kill an enemy. Meanwhile, the enemy can just hold down the trigger of their SCAR or whatever crappy fully-automatic gun they’re using, and you die.
Therefore the unanimous opinion of the gaming world is that the game sucks.*
* Not really, but this stupid mistake makes the M16 pretty much useless, which is annoying and really pisses off those of us who like using it.