Corrupted game files, outdated audio drivers, or incompatible Windows sound settings. Recommended Solutions 1. Verify and Repair Game Files
Click and launch the game directly from that executable. Call of duty exe err mss init failed 150
If your game files have degraded over time or were altered by an automated security sweep, the Miles library must be verified or replaced. : Right-click the game in your library →right arrow Select Properties →right arrow Navigate to Installed Files →right arrow Corrupted game files
Open and expand Sound, video and game controllers . outdated audio drivers
Here is a step-by-step guide to fixing the "MSS Init Failed 150" error so you can get back to the action.