as for what systems i would use for an xcom hack according to my personal tastes, im currently thinking about:
- genesys obviously, like i said i already started a hack in genesys years ago and i think it was pretty good
- cyberpunk red (this would be a pretty big project but i do think the core systems would make a great fit)
- gurps 4e (im always looking for an excuse to use gurps for something. sorry. as if its my fault.)
- a forged in the dark hack would actually make a lot of sense especially set during the advent occupation era. not something i would probably do but i have to mention it because of how much sense it makes!
- this is more an honorable mention bc the game isnt out yet but ive gone on record as saying crucibles of aether would be a great starting point for a Phoenix Point hack and i think similarly it would make for an interesting xcom hack