Modern Warfare's Infected mode has an annoying glitch that prevents players from dealing damage to enemies with melee weapons. Redditor Broncos57 posted the video of his awful game. He jumped on an enemy player riding in a four-wheeler, but he couldn't actually damage him with his melee weapon.
For those that don't play Infection, this wasn't supposed to happen.
Modern Warfare Infected Glitch Makes Players Immune to Melee Damage
Infected has been a popular game mode in shooters for a while, and a staple in the Call of Duty series. In the May 19 update, Infinity Ward add Reinfected Ground War playlist, but it has a pretty significant bug. At first it seems like some kinda of heat, making the player immune to all damage, but other players in the Reddit post posted similar moments.
Because of the glitch, the player was able to clutch a 1v39 victory. Infinity Ward has yet to respond to the glitch, and it may be sometimes before its patched.