Can You Add Completely New Creatures/Models to the Game with Mods currently?

I successfully turned raptors into Bell helicopters playing around with the adk a while back. Was funny watching a helicopter hover over and start bashing against a parasaur. I gave up on that whole line of implementation when I got into the animation side. Its a lot to deal with if you aren’t doing humanoids. If you are, there are tons of free mo-cap BSV files out there that you can use with Blender.