Recon Challenge - Trifecta - Bugged

Hello,

Reporting a bug that happened today where a friend of mine is doing this challenge. He was able to kill a whole team while his scanner was up and yet did not complete this challenge. Attached is a video for this post. It may or may not be because he had the Recon Core "Echo Chamber" where the Echo Pulse releases additional pulses. 

https://youtu.be/Mo7NwDpL5YE