I'm a tdm player mostly but I switched ghost with lightweight and tac mask with extreme conditioning for this challenge in particular. Lightweight/extreme conditioning to use the vsat to its fullest extent by chasing after the arrows helping me reset the streak. Don't want to use ghost because you want people to be able to find you via UAV. Troublesome if you don't have your VSAT up yet but otherwise it lessens the amount of time you spend running around for the next kill.
Edit - You can use tac mask if you find yourself getting killed because of a shock charge/concussion/flash. I was debating whether or not to give up EC for Tac since it ruined a couple of my attempts. I got this on Meltdown but tbh you should be fine on any map once you get the vsat.