In a statement made to BuzzFeed News:

We have removed apps from the App Store that use the Confederate flag in offensive or mean-spirited ways, which is in violation of our guidelines. We are not removing apps that display the Confederate flag for educational or historical uses.

I hate to take sides on this because I don’t want anyone to get the wrong idea. But, I don’t see how historically accurate video games about The Civil War could be perceived as offensive or mean-spirited because of their use of the Confederate flag. The flag’s use is period appropriate and should remain for the sake of historical accuracy.