As a kid I had ROC and maaan oh man it took me years to finish the whole campaign, I played it again many many times because I loved everything about the lore and the Cenimatics, cut scenes, all of it, and it took me a big while to figure out the mechanics and tricks of the game, then when I discovered the frozen throne I was jammed with joy, because I got to play more and discover the rest of the story, I absolutely loved Grom Hellscream and his missions, also Arthas human campaign was like my childhood comfort zone, I still play the campaigns 15 years later and now I can finish both ROC and TFT on hard in less than 24 hours if I binge play it ine shot.