This guide will let you know why the new Calcine Disruptor is insane in Halo Infinite.
The Calcine Disruptor trades utility for explosive aoe Electric damage that takes four shots to kill a spartan.
Shooting any surface will cause an area of effect damage to anyone around, dealing half shield/health damage.
You can even kill spartans just from the explosions.
The Regular disruptor does have three more bullets in the magazine and is more about utility; the Calcine Disruptor is more about destruction.