I have Sims 4 on Xbox One and I have two alien/vampire hybrids. My vampire was abducted and impregnated. The child had vampire and alien powers. The child then grew up and got a vampire pregnant with the second alien/vampire hybrid. The gameplay is fine and you use can both alien and vampire powers but the CAS is really glitchy. You can't always control if your sim is going to be in their alien form or their disguise. They may have human skin with an alien voice. Also it may change you sim's facial features.
