Sounds like a fisheries job. Some of these require two-crew. Not a mandatory requirement, but a requirement of the contracting agency.
If it was aerial work I doubt they would talk of
new start up routes from various Uk and Irish points.
still say its a scam and as for Phils suggestion do they actually own any of thos aircraft or are they not just a charter broker/management company, again hardly likely to be starting a sched service with an islander.