Why is it whenever im near or far away from an enemy and try to use the grenade launcher attachment, it shoots out (makes the sound) and NOTHING EVER HAPPENS?!?! This has gotten me killed soooo many times and I know im not the only one who this happens to. It happens with every gun w/ attachment.. something needs to be done about it. Also I will pull the trigger (using the grenade attachment) and I get killed but right before i die I know damn well the thing came out but nothing happens.. almost like it disappears. Such an anooying glitch. Every playlist, every gun. I Used it twice in a row while the enemy was running up to me and i used both grenades.... Nothing... Then he kills me. all because of stupid Dud grenade launchers..