Legendary "Gamma Void" Maliwan Ordnance Renders Enemies Immune To Radiation Damage

When using the Legendary Maliwan Heavy Ordnance 'Gamma Void', the launcher fires a projectile that triggers a Radiation Singularity effect. When enemies are under the damaging singularity, they will stop taking damage once they reach 1HP and begin producing "IMMUNE" markers rather than damage numbers. 

Please note that while the second effect of the weapon is to increase the amount of damage enemies take from other Radiation sources while under the singularity, the damage the weapon inflicts is increased, but the enemy is still rendered immune to Radiation damage once they're at 1HP. Using the same weapon once the Singularity is complete will deal normal Radiation damage and kill the target.