Answer :

Final answer:

Other characters in Back 4 Blood are unlocked by advancing through the game's story campaigns. As you complete parts of the campaign, you unlock each character.

Explanation:

To unlock other characters in Back 4 Blood, you will need to progress through the game's story campaigns. Each character, or 'Cleaner', is unlocked when you complete a certain part of the campaign. It's important to play regularly and strive to complete the entire campaign to ensure all characters are unlocked. The basics are simple: play, progress, and unlock.

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