Yep, it's research system is a lot more complex (there are far more techs, techs without effects that you need to research to reach certain other techs etc.) It's also a lot of micromanagement, but it feels somewhat nice to be able to choose wether you want to research, for example,desert equipment for your troops. Though usually you'll research it all anyway

. It is a lot easier to tech rush though (no historical years, and you assign IC to research, so you can research A LOT more than 5 techs at a time if you're rushing

). I still like the game though, and I sometimes still play it

. But I do miss some of the HoI2 features when playing it...