Give us some ideas for RP-friendly game modes/antagonists

[Zergspower]

Abduction style antag, they spawn in with a target (RP it as a former employer/fellow employee that crossed them) and they have until the end of the round to get the reward for ransom.
Or have it literally be like an alien abduction, where you can have a similar ability to the changlings impersonator ability to where you can pose as someone to lure them to an area where they can then kidnap you.