Call of Duty: Modern Warfare‘s progression system can make it grueling to level up, but a bug takes things even further. Developer Infinity Ward is investigating an issue that doesn’t give experience to players after completing a multiplayer match.

The issue was discovered over the weekend, with Infinity Ward saying it provide further updates once it identified the cause. During this period, any online games that players participate in can be lost to the nether, at least if they value experience above playing the game for its own sake. The issue remains unresolved.
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