The CIA has a wonderful piece of training that’s publicly available online called ‘‘simple sabotage’’ I’d highly recommend reading it. Also Revolutionary Suicide by Huey P. Newton. Totally unrelated, a lot of campers really like to use a home made fire starter that’s waterproof, there’s a lot of good recipes usually petrol products and shipping materials, very simple. also I’m in a Drone building club at school, it’s not related to this, but it’s a lot of fun.