Not understanding that only guardian kills heal the primeval. Sometimes it’s better to die at invade rather than feed sleeper kill healing. Not understanding that you need to kill the wizards. Seriously - you need to kill the freaking wizards! Bring a void shotgun and Get Up In There! You are losing it for us doing your 3 damage hand cannon shots on the boss at max range hiding at the spawn tunnel! Not understanding how to manage aggro effectively. If your at 0 motes and your teammate is at 14, shoot everything big while he gets that last one to get their attention - better you die at 0 then him at 14. Hiding at the spawn to let the whole arena focus fire one spot. Not clearing out blockers effectively. Bring a special and use it liberally! Even heavy if you’ve got more than 15 to bank as a team.