Video Games Chainkiller tips

Hello! I've been trying to get the chain killer medal (9 or more kills in a rapid succession) for quite some time now, and i finally got it. I have a few tips to share with you.
Play demolition, or ground war on small maps (preferably nuketown, standoff and hijacked).
In demolition there are two things that can happen. You either get spawntrapped or you spawntrap, and if you get control of the spawns then you'll have good chances on getting the medal, as you are looking directly at their spawns, and the odds of getting killed from behind is very low.

For the class setup, fast mag is a must, as it's basically impossible to get 9 kills with 1 magazine, and the time of reloading without fast mag is long enough to reset the timer.
There are a couple of guns i can suggest: Any assault rifle, LSAT or MK48 or the Ballista.
I used the an-94 when i got it, but in the middle of the spree, i picked up a msmc and made it a 13 kill spree instead of just a 9. If you are using a lmg then use fast hands so you can quickly pick up a gun and get the remaining kills once your magazine is empty.

For the streaks, there are 3 streaks i can highly suggest. The UAV, CUAV and the orbital. The lethal streaks will not count towards the chainkiller medal, meaning they will lower your chances of getting 9 rapid kills, and they also tend to make people ragequit. I didn't use them in the video below as i was trying to get a 100+ but i managed to pull it off anyways.

Here is a video containing my chainkiller medal.