Each weapon group have a specific damage value against armored vehicles. Player Health information, courtesy of @Gaffa: Below Rank 20 = 138 Below Rank 40 = 156 Below Rank 60 = 174 Below Rank 80 = 192 Below Rank 100 = 210 After Rank 100 = 228 Full Armor = 50 Full Armor with Heavy Vest = 75 Heavy Vest multiply your armor value by 1.5. Level 120 + Full Armor = 278 Damage values in free mode are different, multiply the damage value  by 0.72 to get the actual damage