I´m not really sure about PvP and I´ve been also talking to my clan mates about that. On a fusion rifle you´re at close to medium range and even from medium range it´s very easy to close distance with blink/sliding etc an get a shotgun/TLW to the face...and a delayed detonation is the last thing you want at that range. But as I said, Telesto actually looks interesting apart from the others