There is an essay titled Antifa Reality Check that is burning up the internet right now.
Three men, any one of whom is 20 times the fighter I am, went to an Antifa riot and got out-maneuvered and had their asses handed to them. They exhibited excellent fire control and things could have been much, much worse.
Reading the essay, your first conclusion might be "Oh, they failed to have somebody on over-watch" and think you have a handle what needs to happen "next time".
Do you think that an enemy who had the foresight to bring strobe lights and other distractions would fail to have over-watch? Who do you think will be waiting for you on that roof when you decide to play roof-top Korean.
They are waiting for you. They are planning on you showing up.
So, if you decide your really, really, really must attend a party that is not on your home turf, maybe you should visit the over-watch position(s) and put up some wireless surveillance devices. Or, maybe you install some distractions of your own on those over-watch positions.
There are only so many Antifa/BLM targets with tactical value. They can only hit one, maybe two a night. Eventually, they will get to the one you select.
What kinds of distractions? The best choice is to disrupt their command-and-control equipment. There are other, nastier ways to distract people by disrupting the environment but I will leave that to you to figure out.
The conundrum, however, is that the team you disable might be some of the good-guys.
Everything written here is for entertainment purposes.