Favella Juggernaughts:
Go into the room to the left through the window. Point your grenade launcher at the window beside the door. Pretty much as soon as you see Mr Jugs fire the grenade launcher. (If you get a headshot he'll go down straight away).
If you miss jump out of the window quickly. Wait until he starts to walk back around, jump back in, and re-aim at the window next to the door again, etc, etc.
With a bit of practice you can one-shot them regularly, with 2 people you should double your chances of a headshot, but getting out of the window might be like fighting your way through a tube station in rush hour
I really like the Special Ops, wish they'd had something like it in Blops.
Go into the room to the left through the window. Point your grenade launcher at the window beside the door. Pretty much as soon as you see Mr Jugs fire the grenade launcher. (If you get a headshot he'll go down straight away).
If you miss jump out of the window quickly. Wait until he starts to walk back around, jump back in, and re-aim at the window next to the door again, etc, etc.
With a bit of practice you can one-shot them regularly, with 2 people you should double your chances of a headshot, but getting out of the window might be like fighting your way through a tube station in rush hour

I really like the Special Ops, wish they'd had something like it in Blops.