Looking back at when my new ass joined in v3 some of my favourite moments were laughing as a cop watching a child SWAT misthrow a flash bang. Personally I prefer SWAT as it’s more inclusive and isn’t a chore to get albeit TFU isn’t hard either (even when you don’t have Samuel bias kappa).
There’s pros and cons to both TFU and SWAT and it boils down to what people want:
A Game.
A realistic environment.
Two options and currently the game mode is in a weird grey area, perp was at its most successful when it wasn’t trying to be a FiveM server but it’s certainly more enjoyable to others. Anyway, that’s my opinion.