1944: Desperate Measures

By the year 1944 the German Reich had begun to crumble, it's only ally, Japan, failing against the Americans and slowly losing ground on all sides while having to fight on 3 fronts it looked like Nazi Germany was doomed.

But what if a few crucial decisions had been made throughout the war and if Germany and Japan were a bit luckier? Say for example if Hitler chose to use gases such as sarin against the allies when it looked like they were going to lose, and if Japan hadn't attacked America in a futile attempt to take on one of the superpowers of the world. I shall be exploring how the war may have turned out if these decisions had been made.

Please not that I am not an expert on the Second World War so if I have gotten any facts wrong then please forgive me but I am just trying to make a scenario I mainly like but other people may enjoy as well.