Kills made by the secondary explosions from Telesto don't count towards the Countdown to Zero pursuit's Fusion Rifle kills. Just letting you all know. If you don't own any other void fusions for Void Singe this week, Y1 Shock and Awe is a decent collections grab. For the arc kills Main Ingredient is amazing.
Well that would make sense as the explosions are not fusion rifle kills but secondary explosion kills.