My computer's video card failed, and as a result, I didn't finish the campaigns in the 6th installment. And running this game on a laptop is quite a challenge. By the way, I've read several times that it doesn't work on Windows 8, but it does, even without setting compatibility with XP or running it as an administrator. But that's not the point; the issue is that I've forgotten over the past year what was even happening, and I've already completed half of the campaigns.