Well, yes, all UE4 games from this developer are using almost the same modified engine, including Samurai Warrior 3, Trek to Yomi and this one. Previously they had separate overrides, I've merged them into one single override option now (where all three games are mentioned), available in specific build from
this topic, which is already mentioned above.
Almost all animations related to human models are linked to proxy meshes, available in Animation/Skeletons subfolder (there are different ones for different purposes I suppose).