Modding Tri Files on armor pieces

[epsilondeltastudios]

I am importing some meshes from Fallout 4 into SSE. And I have a asari model that works in sse now. But the head piece doesn't have any animations to it. I am not an experienced modder at all, I was wondering if anyone of you could help me put tri files onto an armor piece, so that the face moves with facial animations. Or even better teach me how to make a custom race using an already made head mesh.