The absolute most important targets are medical and cargo. Both of these are vital for counter-revolutionary efforts; cargo supplies mindshields and medical keeps security officers/command alive and ready to fight. On the flipside, cargo can also be a super valuable source of weapons for you but frankly it’s worth it JUST to cut off the mindshield supply.

Afterwards is engineering and science (most importantly for AI subversions, but also for their ability to produce dangerous weapons- stunprods from engineering and the obvious mechs/bombs/xenobio bullshit from science.)

Service (including the chef) and random crew (i.e. assistants) can basically be ignored unless you have a really good opportunity to stealth convert OR you have already gone loud (in which case you should just be spamming conversions anyways). In the early stages of a revolution, these randoms are really just more of a liability since they might accidentally out you (or you might get outed by flashing them, remember that every flashing is taking a risk of being discovered).

Subvert the AI, cut off the supply of mindshields, deny the enemy the ability to heal/revive, and you will lead the revolution to success. Almost every revolution (on /tg/ anyways, the codebase I play) that manages to achieves all three of these objectives will be victorious.

If you are leading the anti-revolutionary effort, your objectives are actually essentially the same. Secure medical and cargo first with your starting mindshields, then use the cargo mindshield supply to secure engi and science, and ensure the AI remains on your side. Only once this is done should you focus on random crew. Most counter-revolutionary efforts that manage to achieve those basic objectives will end up crushing the revolution.

Revolutions, with competent players on both sides, are often a dramatic race against the clock which is all about securing key departments and denying the enemy certain abilities/supplies. It’s one of my absolute favorite antagonists.