>>96388588
This is something I've been experimenting with myself (though in my case they'd be dependent on the series, like Piracy/Racketeering/Assassination etc and Resourcing/Relic Hunting/Info Gathering etc).

I think the biggest thing should be that making sure each category of mission plays differently, or has different mechanics. If it's just "fight way to target" then they will feel samey. My players and I have had some discussion and feedback to me about this as well, and I've been thinking of ways to improve. What I've been thinking of is a Deus Ex style method, where there are Combat, Stealth, and Tech ways to complete missions, while also making missions mechanically separate (ex. a Piracy mission would involve mix of space combat and personal combat, an Assassination mission would involve mainly personal combat, Intimidation would involve mass combat). Each mission should also vary in its rewards - a Racketeering mission would reward more Profit Factor / Logistics, an Assassination mission may reduce the prevalence of powerful guys in future missions, a Corrupt Militia mission may allow the players to turn loyalists in the area into summonable Strategic Assets and so on. It's a lot to consider.