Back 4 Blood is finally out for PC and consoles, meaning Left 4 Dead enthusiasts can return to cooperative zombie slaughter with up to three friends, killing Ridden through the game’s lengthy campaign. story mode on various difficulties, but more than just changes in intensity between Recruit, Veteran and Nightmare. There are three distinct difficulties for the Back 4 Blood campaign, each with different modifiers and increased AI intelligence. We’ve listed each of the game’s three difficulties and their passive effects below: Related: Return 4 Blood Supply Lines Explained Recruit Corruption Card Pool: Limited Friendly Fire: Disabled -50% Supply Points Allocated To players Veteran Corruption card pool: medium Friendly fire: deals 35% damage to allies Average level of supply points gained Nightmare Corruption card pool: maximum Friendly fire: deals 60% damage to allies + 50% points Supply Drops Allocated To Players We recommend that you play the game once on Recruit to unlock some of the game’s most influential maps before trying out Veteran and Nightmare modes. Learning how the game and the card system work is essential to overcoming the more painful versions of Back 4 Blood. For more on Back 4 Blood, be sure to look at more of our guides, like the Best Doc Build in Back 4 Blood here on Guides.