Japan:
+more axis light tanks
+6 man squads maybe
+an actual navy
+axis demos
+katanas
-katanas
-turtle strats
-CoH2 has no navy
-no unit preservation ( ͡° ͜ʖ ͡°)
-obsolete medium "armor"
-a complete lack of heavy armor
*players who believe in glorious Nippon steel might think otherwise
Japan lacks a lot of essential parts to be a proper CoH2 mainstay. It's main strength was its navy and airforce, while CoH is a land-based theater. It's anti-tank capability revolved around woefully unreliable methods compared to other factions, and its own armor is at best late 20's technology. Japan has nowhere enough manpower or industry to compete with any of the other factions. Politically, Japan never coordinated anything with Germany, either.
TL;DR: Japan is not for CoH2
#TeamAfrikaKorpsAndItaly
In general, I see no reason not to add the Japanese, the game is not 100% historic - game around Second World War:
- US troops were originally developed without heavy tanks
- The Japanese army has troops / tanks / anti-aircraft guns / support weapons and AT Rocket Launcher/ artillery and air support for the full faction without the help of another nation, plus one can add trophy equipment (captured Sherman, etc). Japan is the strongest version of the independent faction.
- Japan fought with all allies: the USA, Brits, the USSR and was part of the Axis
- We already have King Tiger and JagdTiger in Moscow map (1941) and the USSR in Normandy
The main problem is that Relic left the game, concentrated on the Dawn of War 3 and failed. I don't expect any new content for the game at all, we have only attempts of the community balance change.