A part of me feels like altering history defeats the point of using a historical context in the first place. If what really happened isn't the best story then why not write a new one instead of trying to modify the original to fit your needs.
That being said, I understand the appeal of using characters and situations that we're already familiar with for your story instead of introducing players to entirely new ones.
I think games that play loose with history should at least make it obvious or indicate that they aren't trying to be completely accurate or realistic. I don't recall learning about bionic Hitler in my modern history class so it's assume any game with him in it is playing loose with the facts.
That being said, I understand the appeal of using characters and situations that we're already familiar with for your story instead of introducing players to entirely new ones.
I think games that play loose with history should at least make it obvious or indicate that they aren't trying to be completely accurate or realistic. I don't recall learning about bionic Hitler in my modern history class so it's assume any game with him in it is playing loose with the facts.