to see the dogtags you need to check this one or two seconds scene, when camera goes from Greyback's belt and up. you'll easily see them because they are swinging from one side to another.
an image i'll post below will help you understand where to look for two dogtags, one of them with a big hole in it.
no good details can be caught on a screenshot, you need to see the video in movement and pause it yourself when you notice them.
but once you see them you won't lose them again.
so basically you simply attach the longer chain of a dog tag pair to the shorter bead accessory hanging on predator's chest.
i know that V-Raptor has already added dogtags on his Greyback. i didn't yet. he will do it when he completely reworks mine
