Quite frankly I can't understand the level of worship this mod creates. Maybe it's because I only started to try and play it recently, but I found it completely impenetrable.
The tech system is a mess of confusing requirements and features such highlights as "increase air attack of fighters from 10.00 to 10.05". In BICE, infantry regiments don't use rifles, but engineers do. Researching new AA ammunition makes your trucks worse.
The introduction of unique unit counters has effectively rendered parts of the game entirely unusable (mostly the statistics tab) and made trying to grasp the overall situation much harder. Is that jumping deer a panzer division or an infantry division? Who knows!
The mod is deeply unbalanced and I'm inclined to think that the only people who disagree play Germany predominantly. I've watched a single German infantry division walk into 5 entrenched French divisions and beat them with minimal casualties while the rest of the German army broke through the Maginot line (in fairness, that one cost them hundreds of thousands of casualties).