Nullifier Crewman

The Nullifier Crewman is a Sniper Crewman that carries an energy field generator on his back. The spherical field not only prevents projectiles from entering (similar to Snow Globe), but it also dispels any present buffs as soon as players enter it. Firing at the globe causes it to gradually shrink and eventually dissipate the globe altogether, although it will regenerate after a brief period.

Tactics

 * The AoE damage of explosive weapons will ignore the globe entirely, provided the blast radius is big enough.
 * Continuous firing weapons, such as Synapse can still penetrate the nullifier sphere and damage the enemies inside; albeit with reduced damage.
 * However, if your weapon's damage is high enough, you can simply shoot at the energy sphere, which will cause the sphere to 'shrink' and then vanishing at one point.

Trivia

 * Nullifier Crewman seems to share the same drop table and behavior of Sniper Crewman.