For changelings:
I think they should mostly go at-least early-to-middle, completely stealthy
Until late-game when a changeling has evolved a TON and consumed a bunch of people, a squad of security should be able to pretty cleanly take them out if the ling gets cornered
The issue with this is that sprinting (ew fuck i hate sprinting remove it please GOD) makes gameplay a lot faster so the more stealthy aspects become a lot more difficult
Like, if you don't kill someone instantly? Sorry buddy they've ran across the station in 2 seconds
Antagonists that are solo should NOT be able to fight a properly organized well-equipped security team + a crew that works together right out of the gate
Like, nukies are a strike team, they should have to have a plan, sabotage stuff, and whatnot or else it'll be really fucking difficult (Warops are different, thats full-on team combat which is blah?)
However; at the same time, security shouldn't instantly destroy all possible antagonist activity. There should be room for people to act, slow travel times, issues with communication, etcera etcera. Though that is difficult to not always have someone in reach because with sprinting you can FUCKING RUN AT MACH 3 ACROSS THE STATION!!! AHHH!!!!
Traitors; for example, should struggle to be able to kill everyone. They shouldn't be able to buy massive fucking guns to kill people, its more interesting if they have to somehow hit armory or get guns from cargo and use the equipment they can get from their jobs (again, thank you traumaa)
It feels like goob has become less of a space station roleplay game and more of a pvp game which sucks