The path to release hasn't been the easiest for Modern Warfare 2. Notable bugs and errors have plagued the title revealing restricted menus and modes as well as causing player profile issues. This continues as players have been unable to experience the campaign mode for Modern Warfare 2.
Modern Warfare 2 Campaign Crashing: How to Fix
According to a Reddit post, PC players are experiencing game crashes during the second mission of the campaign. The Redditor then goes on to pinpoint the exact moment this happens. This error begins after killing a certain enemy which causes the game's frame rate to drop and then crash.
Xbox users are experiencing campaign issues as well. After downloading the necessary content, players are being met with a "too early" message that prevents them from accessing the campaign. Infinity Ward has yet to resolve these ongoing issues as of writing, but players can try restarting their console to see if that solves the issue.
Although this may seem like a no-brainer, PC users experiencing issues with the campaign should make sure that their PC specs meet the requirements for the game. If they do, then lowering the graphical settings for the game could prove useful. Those that are launching the game through Battle.net can also scan and repair the title through its settings menu.
Further issues that pop up might require a full uninstall and reinstall process.