Ok, the biceps line seems to be all around the biceps:
So for the bicep it could be something like:
Special unit details in red shall be present in the form of two vertical stripes, running the length of the bicep. One in the front and one in the back (cover strip area). There is a red band all around the top of the bicep.
If it's okay I will do it and give a picture of the bicep when it's done.