Scenario

I'm having a problem creating a map for a campaign, and I can't figure out how to set the objectives. For example: * Collect a certain amount of gold. * Capture an object. * Recruit units of a specific type with certain upgrades (peasant, militia, landlord). * Protect an object, but not just a castle, but also other objects. What solutions can you suggest? If you can provide some, I'd appreciate it. And maybe I'll create the first campaign.