I think there's no Taiga terrain yet. It would be cool. Sable could be there. And maybe even that Chimera-like animal (beaver-tiger). Or just real life forms.
The geographic accuracy and inclusiveness of taiga life species in W:A should clearly be the top priority in W:A community.
I agree, we need a taste of Mother Russia, with the beaver-tiger roaming the untouched beauty of the Russian taiga in W:A.
If someone creates such a terrain, please let me know, it would be cool to play on such a destructible map.