The tanks in your WW2 game aren't from WW2.

That nuclear blast alone is worth the experience.

did they do any research at all?

Hey, a VR battlefield experience, thought I! I'll check out the trailer. The first things I see in this WWII battlefield are a Sikorsky H-19 and a Soviet T-55 tank, both from the 1950s. And then we got to the part where we apparently nuke North Africa with a P-38. Um, no....