Originally posted by hankm242
Step 1: Invite a friend & Start up a Hardcore Gamemode I recommend domination.
Step 2: Find a spot on the map where you and your friend can hide.
Step 3: Put your riot Shield on your back and pull out your secondary.
Step 4: Have your friend get behind you and shoot you in the riot shield as long as you have your secondary out it will rank it up.
Notes: I think this will only work with the absorb so much damage challenge.
Does your friend have to be on your team or the other team?