Oh yeah, they do call Kaiserreich "the syndie mod". And, like, I was never really a syndicalist, but I did love the C.N.T-F.A.I in my teenage anarchist phase. So yeah I like syndicalism in political games even now.

Oh, yeah. Communist China is a fun one to play in a lot of these political games. I will say, I personally like unconventional and ahistorical commie paths a lot more than the mostly-historical ones or alternate ideologies for actual socialist states. A good test of a "Leftist Mod" for a game like this is the quality/existence of the ahistorical communist paths. I do like both wildly implausible ones and ones that follow the communist tendency actually popular in that country at that time frame, though. And I always like a good implausible an-com or syndie power-fantasy path, because when I play political games, I'm very much still my twelve year old self.