Damage on the stat cards are not the damage you deal in game.

Tested in the firing range at 10m Weapons affected (the ones I unlocked) :

• M4A1 : 21 instead of 25
• AK-205 : 17 instead of 20
• M417A2 : 27 instead of 33
• RPKM : 27 instead of 33
• SVK-8.6 : 60 instead of 66
• PW7A2 : 17 instead of 16
• SL9 : 20 instead of 25
• SCW-10 : 25 instead of 33