Enemy Files

Mutex_3S

Decoded Name	Mutex 3 (triple) Shell carrier
Operation	An astral messenger capable of securely carrying important content across vast distances without running out of energy. Its energy-resistant exo-shell protects its power regenerator core unit; which often generates excessive amounts of energy that must be disposed. The unit equips a stability indicator that determines when the disposition must occur. This disposed energy is used to generate small decoy mines to trap hostiles following its trail.
Combat Specs	Armor: Invulnerable. Attack: Fire decoy mines (only when power regenerator is exposed). Maneuverability: Low. Notes: Mutex_3S is originally not a combat unit.
Dimensions	31m x 37m x 31m

Strategy

Mutex_3S cannot be destroyed while it is closed. Anticipate the blue ring surrounding it, when the rings comes to a complete circle, Mutex_3S will open its shell to dispose of its energy (as decoy mines). This is the only time window when it can be destroyed. Time the attacks and ensure accuracy to destroy it.
The decoy mines left by Mutex_3S are not a serious threat, but they can easily sneak in during the heat of battle.
The blue string laser is most effective against Mutex_3S because it delivers immediate damage without complicated bullet timing.