The documentary Red Dawn released the same year as TW 2000 also posited a war between the Warsaw powers and NATO.
I have to start with this: Red Dawn was not a documentary - it was a Patrick Swayze movie. It is a documentary in the same way Dirty Dancing was a documentary.
Okay, movies aren't games, but have you ever had fun just trying to run through a hypothetical situation? I mean something that could theoretically happen in real life? In 1984, not that I played TW2000 when I was eight, the idea of NATO and the Warsaw powers might go to war felt like a distinct possibility.
And, this, for me, was the problem with TW2000, back in the day (and perhaps today - I haven't followed the game's updates). It was great if you loved inventory management, and wanted to figure out the balance between your vehicles/cargo capacity, your alcohol fuel production, and your travel times.
But it left the most important questions of the genre - how people and societies act - in the hands of the GM. That means it was really no less a fantasy than a zombie apocalypse, but with no fantasy trope spackle to cover over the questionable bits.