@WILD:
I still feel Russia would be better served w/radar. Mainly because the axis are normally trying to take her out first. Soviets are mostly on defense. Radar would help them deter SBR, or maybe take out an enemy bmr or two. Radar also comes with no extra costs, I don’t have to spend another $15+inf to use it. I don’t know if the designers just didn’t want Russia to get radar. Maybe historically they didn’t have it? Maybe they didn’t pick this up through play testing I don’t know.
I like Improved Industry more than Radar for SBR defense, at least for soviets. It’s in land tech tree so you don’t have to risk getting crappy naval techs. Also, you can afford trade Caucasus (well, only a bit), since you could build 8 guys from Moscow
By the way, bombers cost now 12, not 15. At start I thougth It was a design error, but now I found it has a lot of sense