[Phantasm]

Mulder and Scully were FBI agents, who I would peg at roughly 150 to 250 points. I really don't know how well-trained they were in combat situations; Mulder seems to have had a desk job for most of his recent career, while Scully would have been in the field more recently before being assigned to babysit Mulder.

That said, I'd probably look at the Action! line rather than Monster Hunters for such a game, handing out XP at a fast enough rate to get them to Monster Hunters levels by the time you get a bit more overt with the supernatural.