Let them know how to respond and ensure that they are properly equipped with the tools to deal with it.
A swarm of cars and a door broken down would not be a usual occurrence in my neighborhood. The sound of gunfire in the night would be unprecedented.
My neighbors know that I would readily protect my perimeter and theirs with lawful force. Likewise, I can depend upon them to return the favor.
Any sound of gunfire is an invocation to join in the protection of our neighborhood. We agreed to a pact of mutual protection.
House by house; street by street. We will not be oppressed by criminals or gangs.
This is how we will resist.
If an onslaught is met by a crossfire, bet on the crossfire to prevail.