Who wants that Seventh Column Medal?

So I've been wondering how to get that Seventh Column medal and after watching the above video, I think we can cheese it as a group with couple of Warlocks. We just enter a fireteam with clan members only, enter a Rumble match and just wait till all our supers are up. One Guardian will be the designated killer each time everyone else just self resurrects and waits to be killed again. I realise this is not legit but I just can't wait on luck for that medal, same can apply for the Phantom medal. If you are up for joining this cheese and wine gaming session, just let me know in the comments and we will schedule a time, it should be fun taking turns to kill each other. Seventh Column: Defy probability by rapidly killing seven enemies Phantom: Defeat seven opposing guardians without taking any damage