I got reaper with my hunter about a week ago. We were playing on Pantheon and most of my team had just died but they were able to kill off the opposing team as well so I went in to cap B and as I am capping it my radar lit up on one side so I activated my arc blades and as they came I mowed them down. It was extremely lucky that I got it because what team has everyone push to the middle at the same time in a single file line. Just happy that I had the perk selected that extends the duration of arc blade with kills.