Infinity: Yu Jing: Hundun Ambush Unit

Description:

After seeing them in action and witnessing the havoc they wreaked, popping up from nowhere to break the enemy offensive with their deadeye shots, the intelligence service began to call them Hndn, the faceless, evil creature from Chinese mythology who embodies chaos and confusion.

Hundun are lethal shooters that attack by surprise using their Hidden Deployment, with no enemy they can't reach thanks to their X-Visor.