- Field Repair.The skill of tank repair in combat conditions increases damage elimination rate, particularly tracks repair time. - Tank Driving. Tank driving skill affects driver's breaking reaction rate, as well as choosing necessary gear and its changing speed. - Targeting. The skill of gun targeting affects targeting speed and accuracy. An experienced gunner targets the gun both vertically and horizontally at once; an inexperienced one does it in turns — at first he rotates the turret and then fixes the angle of fire. - Rangefinding. Precision of target rangefinding afects long-range fire accuracy. - Leadership. Affects skills of other crew members. - Machine Gunnery. Accuracy of fire from coaxial machine gun. - Weapon Reloading. The skill of the loader increases the main weapon reloading rate. - Bow Machine Gun Fire. This skill affects accuracy of bow machine gun fire. - Bow Machine Gun Reloading. This skil affects bow machine gun reloading rate. - Radio Communication. This skill affects the rate of target assignement to the allies via radio.