Battlefield 4 was released on October 29th and while developers/testers try their best, it is next to impossible to test every possible configuration and scenario that would uncover all game bugs. Most bugs are detected and resolved during development and internal testing, while others are uncovered and fixed during a Beta release. However, many bugs, and in some cases major issues, end up making their way into the final release making the game or portion of the game unplayable for some. This immediately unleashes a backlash (and rightly so) from gamers who've put down $60+ for the game, followed by a flurry of hot fixes and game patches to address the major issues as quickly as possible.
This post is intended to help gamers track down the different issues that may be experience with Battlefield 4, whether it be for the single player campaign or multiplayer component. I encourage you to post a comment here with any Battlefield 4 bugs, issues or problems you may be experiencing. Many times a work around has been discovered by other gamers that may minimize the impact of the game bug until a patch is provided. I also encourage you to read through the offical Battlefield 4 Forums for updates to specific bugs the developer may be tracking and release timings for fix/patch.
Another resource worth checking out is a reddit "official bug and help thread".