BumpinBumpin1337 is using a no recoil macro, he has previously been cleaned.
https://bf4db.com/player/ban/1004857688909
Video below:
https://www.twitch.tv/videos/936972475?t=02h40m00s
TwitchMetinpasa got him to share his screen on video. Macro usage is admitted multiple times. Macro usage can be seen from 2:47:00 on. The actual macro program is show cased from 3:09:10 on.