I think most of you guys have it wrong. The best way to resist a tyrannical government or occupying force is to start or join in on some serious mafia shit.
Don't start sabotaging immediately, get some capital!
Start stealing shit from the occupying force. Start with car parts, small furniture, uniforms, and guns. Sell it to the impoverished populace for reasonable rates (I have Shitcago and I live 50 miles from the meth capitol of IL and 20 minutes away from the U of I, poverty is easier to find than googling it). When you are comfortable, start a crew to steal any vehicles/machinery from the occupiers. You are now a Robin-Hood Partisan!
Let's say this occupying force has beef against certain substances. I'll stick with alcohol for now.
Use the money you got taking from the usurpers to fund distilleries and old-timey speak-easies or to traffic hooch from distiller to speak-easy.
Hopefully before you started your hoochery, a friendly political force (Original government or a neighboring nation who's tired of your new ruler's shit) will offer you some contracts/deals/jobs. Now you will actually get paid to resist! When the political force feels ready to liberate your land, you should have crews of partisans and bootleggers who are willing to take on the usurpers.
This is now the time to start ambushing opposing forces and sabotaging their shit. Rinse and repeat until occupiers surrender or gtfo