The problem I've come across is that sometimes the Cabal Phalanx's melee is too strong in regards to its knock-back, though I've only encountered it on missions and on patrol. The Phalanx's melee, instead of simply knocking me back, would send me flying and be a guaranteed death, either by slamming into wall or flying off the map. One such incident I had was when I was sent flying over the canyon in the Vally of the Kings on Mars. If Bungie wouldn't mind looking into this problem, it would be appreciated.