The Beam Rifle from Star Wars Battlefront II
This weapon is supposed to be a reward upgrade for the Sniper class, but the scope has a lower magnification, it takes twice as many shots to drop a target, and headshots do not 1-hit-kill, I mean what is the point in a sniper rifle that can't kill with a headshot? However, the single most incompetent feature is the fact that, being a BEAM Rifle, every shot you fire leaves a great glowing trace from your target back to your sniper nest, which persists for about three seconds after the shot is fired, and instantly attracting a hail of enemy fire to your position. Quite possibly, the most useless sniper rifle seen in a theatre of warfare.