Had he exposed himself? He definitely had.
The machine-gun bullets were clearly concentrated on one spot, yet they ultimately scattered and veered into the nearby wall, while the gunner kept his finger on the trigger. The other soldiers certainly would not think their comrade had lost his mind and insisted on wasting ammunition indoors.
Besides, they were soldiers who had dealt extensively with Mutants. With so many bizarre and varied abilities out there, they could not help being especially alert to abnormal signs. So when the machine gunner noticed something was wrong, he chose to open fire.
But the bullets on an ammo belt were not unlimited. When the gunner emptied one belt and began reloading, the soldiers standing guard alongside him raised their rifles and fired, maintaining suppressive fire.
During that brief gap while one side reloaded and the other took over firing, Boar decisively deactivated the Distortion Field, revealing the mech's form.
He raised his hand and fired two tranquilizer darts, dropping two soldiers who had been aiming their rifles at him. He did not continue attacking because the darts reloaded too slowly, and there were still three opponents left.
With a powerful kick, Boar crossed the distance between the stairwell entrance and the guard post in an instant, closing in on the remaining soldiers.
At the same time, the right hand that slapped against his thigh had already drawn a kukri from its storage compartment. The blade linked with the Isu energy in his arm, making the knife seem like an extension of the mech itself.
A flash of steel split a rifle firing at him in two, along with the arm holding it.
The screaming soldier did not inspire the pilot inside the mech with even a trace of pity. Boar kicked sideways into the bend