It's the ultimate cock block in multiplayer first-person shooters: You round the corner and see five unsuspecting foes, all with their backs turned to you. You aim down your weapon's sights and unload on the poor bastards, gritting your teeth as you do so. You manage to take out four of them, but then something happens: You suddenly stop firing and your character raises his weapon, removes the old magazine, and slowly begins inserting a new one. The last remaining guy, now well aware of your presence, turns around, takes aim, and fires. You don't shoot back because you can't. You were caught in the middle of a reload, and now you're dead.