Neumann ("Geschwaderkommodore" as of 10 June 1942) encouraged Marseille to self-train to improve his abilities. By this time, he had crashed or damaged another four Bf 109 E aircraft, including an aircraft he was ferrying on 23 April 1941. Marseille's kill rate was low, and he went from June to August without a victory. He was further frustrated after damage forced him to land on two occasions: once on 14 June 1941 and again after he was hit by ground fire over Tobruk and was forced to land blind. His tactic of diving into opposing formations often found him under fire from all directions, resulting in his aircraft frequently being damaged beyond repair; consequently, Neumann grew impatient with him. Marseille persisted, and created a unique self-training programme for himself, both physical and tactical, which resulted not only in outstanding situational awareness, marksmanship and confident control of the aircraft, but also in a unique attack tactic that preferred a high angle deflection shooting attack and shooting at the target's front from the side, instead of the common method of chasing an aircraft and shooting at it directly from behind. Marseille often practiced these tactics on the way back from missions with his comrades and became known as a master of deflection shooting.