When the enemy has well prepared positions with natural or constructed tank obstacles, the German infantry attacks before the tanks and clears the way. The objective of the infantry is to penetrate into the enemy position and destroy enemy anti-tank weapons to the limit of its strength and the fire power of its own support weapons, augmented by additional support and covering fire from the tanks and self-propelled weapons sited in their rear.
Only after the destruction of the enemy anti-tank defence can the tanks be employed on the battle line to the fullest advantage.
When the tank obstacles in front of the enemy position are already destroyed, and no additional tank obstacles are expected in the depth the enemy’s main defensive position, the infantry breaks through simultaneously with the tank unit. The infantry attack is conducted in the same manner as it would be without the co-operation of tanks. Heavy infantry weapons are kept in readiness to fire at possible newly discovered anti-tank positions. Of particular importance is protection of the open flanks by echeloning the flank units and employing heavy weapons at the flanks.
In most cases, the infantry follows the tanks closely, taking advantage of the firepower and paralysing effect of the tanks upon the enemy’s defence. The Germans normally transport the infantry to the line of departure on tanks or troop-carrying vehicles in order to protect the infantry and to increase its speed. The infantry leaves the vehicles at the last possible moment, and goes into action mainly with light automatic weapons.
The tanks advance by bounds from cover to cover, reconnoitring the terrain ahead and providing protective fire for the dismounted Panzer grenadiers. The tanks do not slow their advance to enable the infantry to keep continuous pace with them, but advance alone and wait under cover until the infantry catches up with the advance, terrain that does not offer sufficient cover is crossed with the greatest possible speed.
The infantry attacks in small formations also by bounds under the fire cover of its own heavy weapons and of the tanks, staying away from individual tanks because they draw the strongest enemy fire.
When a tank company attacks with infantry, there are normally two platoons on the line, one platoon back, and the fourth platoon in reserve. The interval between tanks is usually 100 to 120 yards.
The tank’s machine guns usually engage infantry targets at about one thousand yards range and under, while the tank guns engage targets at 2000-2500 yards.
The co-ordination between tanks and Panzer grenadiers moving into combat on armoured half-tracks is similar to the technique employed in a purely armoured formation, since the armoured half-tracks are not only troop carrying vehicles but also combat vehicles. When the terrain is favourable for tank warfare, Panzer grenadiers in their armoured half-tracks follow immediately with the second wave, after the first tank wave has overrun the opponent’s position. A deep and narrow formation is employed. After the penetration, the main mission of the Panzer grenadiers is to overcome the enemy positions which survived the first wave.
In attacking enemy pillboxes the Germans use combat groups consisting of tank’s, infantry and engineers, assisted by artillery. The normal composition of a combat group attacking line bunker is one platoon of tanks and one platoon of infantry reinforced by one squad of engineers. Before the combat group is committed against the enemy pillbox, artillery fires high explosives and smoke shells at the neighbouring pillboxes to isolate them, shells the terrain between pillboxes, and conducts counter-battery fire. Under the protection of this fire, the combat group advances close to the pillbox while other infantry units attack the enemy in the terrain between the pillboxes.
One tank squad covers the advances of the other tank squads and the infantry platoon by direct fire against the pillbox, particularly against the observation and weapons openings. The first tank squad halts under cover whenever possible and covers the advance of the second tank squad.
When the combat group reaches the barbed wire obstacle surrounding the pillbox, the two tank squads have different missions. One tank squad remains in front of the pillbox, and its tanks are driven into a position from which they can overlook the terrain, and watch out for anti-tank guns and machine gun emplacements, while the other tank squad (the pillbox tank squad) rolls across the obstacle to enable the infantry and engineers to get close to the pillbox. The pillbox tank squad then fires on the pillbox at close range. The infantry squad meanwhile takes the surrounding terrain and covers the engineers who blast the entrance of the pillbox with TNT.