avoids friendlies

Pepper-poppers sprang up from the floor, and now Top could see that some were civilians of four distinct kinds—official-looking men and women in good suits, wearing American flag pins on their lapels and broad photo-op smiles; other men and women wearing the dark suits, white shirts, dark ties of Secret Service agents, all the way down to sunglasses and wires behind their ears; people wearing T-shirts or hats with various political party slogans—both right and left wing; and more of the Fixers in the fancy body armor.

The K-110’s machine guns fired continuously, cutting every single member of the first three groups to pieces but somehow—despite noise, movement, strobes, and gun smoke—selectively ignoring the Fixers.

...

The six Fixers behind the fighting machine now spread out and ran forward, using their weapons to guarantee that any target with a wound was given a kill shot. The K-110 still fired with its right-arm machine gun, but even with the Fixers moving all over the floor, not one round so much as scratched them.

-Relentless pg. 232-233), Kindle Edition.