Gives a VERY SMALL CHANCE for regular cops and special units to play the famous "Wilhelm Scream" sound effect heard often in old action movies or comedies.
Editing the death screams is finicky so the Bulldozers' lines are a little hard to hear under the other voiceline that plays when one dies, and when killing enemies with fire there may be an additional fire screaming voiceline that follows the Wilhelm.
Keep in mind that the death screams for enemies is mixed very low and the volume is based on proximity so you may not hear it always when it happens, but if a tree falls in a forest and nowhere is there to hear it... yeah.