It seems that the alarm signal did indeed go off and reached where it needed to.
Ernst Zuter, who is in close proximity to the killed soldier, became the most noticeable target.
The APC fires from a machine gun.
Miss
Ernst Zuter takes 230-20%-5=179 units of damage (471|650)
Miss
Miss
Miss
Miss
Miss
Ernst Zuter takes 173-20%-5=133 units of damage (338|650)
Ernst Zuter takes (crit) 330-20%-5=259 units of damage (79|650)
Miss
The APC prepares to launch a rocket.