I am trying to get the gold camo for my sniper rifle in Ghosts. It's very frustrating because I have completed all of the camo challenges except one....the "rescue" kills are very, very hard to do with a sniper rifle. I am stuck on 6, and need to get 4 more to unlock the last camo and thereby unlock the gold camo.
I saw that most people "use a friend" to help them to this, and the friend will use a riot shield and dash out and take fire while the other guy stands off to the side and picks off the people shooting at the shield guy. But, it seems from message boards that even this approach is very difficult to pull off successfully.
This is really pissing me off.