Boom. Done.
But honestly, my personal one would be either Battlefront 3 or Age of Mythology 2. Battlefront should be self-explanatory, but Age of Mythology...that was my first RTS I ever got, and it was more or less the first actual "adult"(ish) PC game I ever got. I must've spent well over 1000 hours on that sucker. Sadly though, it doesn't play very well on my current laptop, it's too old, I guess. But honestly? If they just released an upgraded version of the first game, I'd be completely ok with that. Like, if they just tightened up the graphics/AI, and maybe a few balance things. It was a great game, and with all the HD remakes from the late 90s/early 2000s, I think there might actually be a bit of a chance here. Definitely more of a chance than Battlefront has...