With human shield I mean grabbing someone like this and using him as a mobile cover while you can still shoot your enemies. I thought this would be covered in the Grapple rules, but to my surprise there is no mention to this tactic. I'd like to know if there's any rule for this sort of action in this book, or any of the 40k RPG books made by FFG.
If there are no rules explaining this, how could I make house rules to make this work? The character grabbing the other one should be able to shoot one handed weapons, and anyone who tried to shoot him should aim for the head or hit the grabbed guy.