B-17 bomber is riddled with German anti-aircraft fire but miraculously survives. Later they discover the explosive shells were all inert; sabotaged by Nazi slaves working in armament factories.
Inside one empty shell is a written note: it's all we can do for you now.
The most important part of all this is that these small acts of bravery and noncompliance cannot be known as long as the enemy still stands, and might never be known. Just because it doesn’t seem like anyone is doing anything doesn’t mean it’s true. The best malicious compliance or subtle sabotage is the one that’s never detected, but makes ravages nonetheless.
A critical part of any resistance is
Do not post your crimes
Do not brag. Do not look for brownie points. Do not publicly recruit. Keep your mouth shut.