Back 4 Blood uses a card building system, where you can make a card deck around a specific Cleaner. Take Doc, for example. Doc is a healer, so you want her cards to focus on keeping the party alive.
Jim, on the other hand, is your glass cannon DPS. He can dish out a ton of damage, but the other team members have to protect him, or they have lost their primary damage dealer against the Ridden.
Each deck can only hold 15 cards, so you want to mainly focus on weakspot damage as much as possible.
Related: Best Doc Build in Back 4 Blood
|Card Name||Positive Effects||Negative Effects|
|Glass Cannon||+25% Damage||-30% Health|
|Hyper-Focused||+50% Weakspot Damage||-20% Damage|
|Cocky||+75% Weapon Swap Speed||When you take Damage your Accuracy is reduced by 20% for 3 seconds.|
|Steady Aim||+80% Aim Speed||-50% ADS Move Speed|
|Admin Reload||When you stow your weapon, it reloads.||-15% Ammo Capacity|
|Cross Trainers||+20% Stamina, +20% Stamina Regen, +3% Move Speed, +5 Health||None|
|Ammo Stash||Your secondary weapons have Unlimited Ammo.||Your secondary weapons reload 20% Slower|
|Knowledge is Power||+10% Weakspot Damage, Allows Player to see values for damage they deal and enemy health bars.||None|
|Stock Pouch||+30% Sniper Ammo Capacity, +10% Damage with Sniper Rifles.||None|
|Widemouth Magwell||+30% Reload Speed||-5% Damage Resistance|
|Marked for Death||Mutations you Ping are highlighted and your team deals 10% increased damage to highlighted enemies.||None|
|Pep In Your Step||Precision Kills grant you 10% Movement Speed for 5 seconds.||None|
|Reckless Strategy||+30% Weakspot Damage,||-5% Damage Resistance|
|Tunnel Vision||+50% Aim Speed||-5% Damage Resistance|
|Ridden Slayer||20% Weakspot Damage||None|
Feel free to tweak this deck into your own style. Change Sniper damage to, Shotgun or even Assault Rifle. The builds are endless and will only be improved over time.