I watched a video of making scratches. The explanation is also detailed and good. Speaking of luxury, why not make clothes and other items that are full of blood? I also want to see the promotion videos of the zombies.
傷の作成動画など見ました。説明も細やかで大良しです。贅沢を言えば、今度は服なども血だらけのものを制作してはどうでしょう。そのゾンビやらのプロモ動画も見たいです。

The forum is an amateur.
フォーラムは素人です。

This short Video shows You how easy you can create props from body character.
and Amazing option is Applying DH Shader from Model to PROP (its a bit tricky, but looks much more better than casual sss shader)

extra hint(not on this video): IF you want add expression to separated face , open CC3 , add expresion to your face, and simply export OBJ to blender and do the rest like 
in this tutorial Video. 

IF you have any question feel free to ask. 

Hope you Enjoyed , have a good time !