Can I ask a favour? Before we get started could everyone that's reading this sort themselves into one of three groups? Over there by the bust of Winston Churchill, I'd like those of you that are already familiar with this games predecessor, Hearts of Iron II. Beside that bust of Mussolini, I'd like the people that have never played a Paradox game before but have dabbled with middleweight strategy greats like Civilization 4 and Rome: Total War. Lastly, next to the bust of George W. Bush I'd like to see the novices - those gamers whose strategy experience is limited to base-building RTS like Warcraft 3 or Age of Empires 3.
Right, everyone in the Bush group leave now. Go. Seriously, there is nothing for you here but hurt, hurt, and more hurt. HoI2: Doomsday is complicated in the same way that a jumbo-jet's wiring or Norway's coastline is complicated. Unless you're unusually studious and incredibly patient, you'd be far better-off losing your World War 2 grand-strategy cherry to a title like the recently updated Gary Grigsby's World at War or the old-but-gold Strategic Command.