TBH there is no POD after the 6th army was destroyed where the Germans could win (ie destroy all the Soviet divisions in the Kursk bulge) at Kursk...
All right, I found the data I was looking for. Otto Ambros was an employee of IG Farben, and discovered both Sarin Nerve Gas and Soman. At the time of the planning of "Citadel", Hitler was seriously contemplating the use of Tabun and Sarin gas against the salient; Albert Speer then brought up Otto Ambros, who managed to convince Hitler not to use the gas since he thought the Western Allies also had their own stocks of Nerve Gas; they would not develop their own stocks until 1949. Thus, gas warfare was not used.
If you kill off Otto Ambrose, it is very likely that Hitler would proceed with the use of Tabun and Sarin against the Kursk salient, which would be devastating to say the least. At the same time however, you prevent the invention of Soman gas.
Source is the "Crime and Punishment of IG Farben"
Quote:
Speer, who was strongly opposed to the introduction of tabun, flew Otto Ambros, I.G.'s authority on poison gas as well as synthetic rubber, to the meeting. Hitler asked Ambros, "What is the other side doing about poison gas?" Ambros explained that the enemy, because of its greater access to ethylene, probably had a greater capacity to produce mustard gas than Germany did. Hitler interrupted to explain that he was not referring to traditional poison gases: "I understand that the countries with petroleum are in a position to make more [mustard gas], but Germany has a special gas, tabun. In this we have a monopoly in Germany." He specifically wanted to know whether the enemy had access to such a gas and what it was doing in this area. To Hitler's disappointment Ambros replied, "I have justified reasons to assume that tabun, too, is known abroad. I know that tabun was publicized as early as 1902, that Sarin was patented and that these substances appeared in patents. (...) Ambros was informing Hitler of an extraordinary fact about one of Germany's most secret weapons. The essential nature of tabun and sarin had already been disclosed in the technical journals as far back as 1902 and I.G. had patented both products in 1937 and 1938. Ambros then warned Hitler that if Germany used tabun, it must face the possibility that the Allies could produce this gas in much larger quantities. Upon receiving this discouraging report, Hitler abruptly left the meeting. The nerve gases would not be used, for the time being at least, although they would continue to be produced and tested.
This isn't a POD that would bring victory at Kursk?