Nirsial managed to obtain information about something that has been abandoned...or maybe intentionally hidden, in these caves.
He doesn't hesitate about going in alone. However, he is prepared for uneasy situations.

This picture depicts Nirsial's usual gear for exploration and small-scale combat, including:
-The robotic arm with the repeating energy gun mounted at the end, which is operated using the visor over his eyes, and the sensor strip going into his mouth that can be precisely operated by teeth and tongue.
-The reactive field emitter which's generator is on his back (shared energy source with the gun) and several emitters visible across his gear on his body for more efficient field distribution (for example, the two metallic shapes over his forehead)