Violence to what end? Being violent just because you can just makes you an animal.
If you are going to go down this road, regardless of what method is used, we would need to begin segregating our communities IMMEDIATELY, educating our children, establishing our own ways of distributing and producing goods. Our own communication network. Stockpiling of weapons and capable people to train these people. You need to make sure everybody is down before it starts. You have to have your money right. You need to have an established chain of command. You need an outlined plan and the willpower to see it through to the end. If you want to go down this route
Don't let your emotions get in the way of better judgment. You got a consensus on who is really down? Are you really sure that brother standing next to you is going to commit? You trying to hype up people for some type of war when everyone knows you have to get your shyt together before you do that. Do we have any semblance of self reliance and infrastructure in the black community? You're not going to war with anyone if you don't have a steady supply of goods. You don't just wake up and say the revolution is now and expect that shyt to work.
You don't really understand the purpose and potential of violence in the kind of environment we're in. This isn't about an all out war or anything. It's about a shock to the system.
Asymmetric, insurgent violence is actually more effective if you're integrated within the community that's oppressing you. The problem with white america is that black America's problems are always distant to them. If you're the average white person, life is pretty comfortable for you regardless of whether or not white cops are killing black people like it's nothing. Maybe you have to scroll by a political Facebook post from the one or two black friends you have, but that is as much as you are inconvenienced or affected by this.
However, if you turn on the news and see black men engaging entire police departments with AR-15s right around the corner from where you work, that's a totally different experience for you. That's real to you. Now it's a question of, "Am I safe? Is my family safe? Why is this happening and how can it be stopped?". That doesn't work as well if the violence is in an entirely separate location or community. If the latter is the case, you still go about your business.
Case in point, when black people rioted in LA after the Rodney King verdict, what did the police do? They shrugged, set-up an enforcement line of officers to quarantine the violence to the black neighborhoods and protect the white neighborhoods, and essentially said "Be as violent as you want, set as much shyt on fire as you want, just don't bring that shyt to the white part of town."
When you're segregated, it's easier for the oppressor to ignore you or just snuff you out entirely. Another case in point: Israel and Palestine. That's why Palestinians have to go through security turnstiles and checkpoints to work in areas under the control of the Israeli government with Israeli populations. And it's also why Israeli jets and helicopters can lob missiles at entire apartment buildings in Palestinian areas. Segregating would absolutely NOT be the thing to do.
When it comes to this notion of violence, I don't think a full scale insurgence is needed. People just need to understand that black people have a backbone and will not be tread upon. That does mean retaliation from time to time, and though I prefer economic retaliation, other retaliation probably does have a place. I honestly don't think the vast majority of police are racist killers (though there are certain police departments, particularly in the south, that are overtly white supremacist organizations), but I DO think the vast majority of police condone racist killing. The difference is effectively zero because of the power the killers derive from those who condone the killing. Life needs to become uncomfortable for those who condone the killing.