**This solution is outdated! The Fireteam Duo playlist was patched out! Sorry!**
Update January 2021
The Fireteam Duos playlist made this achievement extremely easier. All you have to do now is to kill 2 people instead of 4 and it will still count towards your Squad Wipe medals count.
Some general tips to speed things up for those who don’t play COD often:
- Use guns with large magazines and/or extended mags attachments. This is due to the fact that players in fireteam tend to have more life points compared to other modes. Also they will become useful when trying to take down more than one enemy at once.
- When you down an enemy don’t just end em right away. Instead, let them crawl around the ground a bit while you camp the spot. Often times, their buddy will come and rescue them and you can pop him as well (squad wipe)
- Dive head first in the dirty bomb sites, forget about the rest of the map. Just go there and play, don’t worry about KD or skill. You should be able to get 2 to 3 medals per match, even more if lucky/skilled enough.