A GBRf Rail Operative is a Shunter by any other name.
GBRf tend to have a reputation for poor rostering. We have a lot of people who are very grateful to have left GB. Stories are abound of cut and paste rostering eg you'll get rostered the same job for every working day of your first week and next week will be a cut and paste of your first week, and that can go on for actual years (which is terrible if it's a night turn). Similarly they like to get as much work out of you as possible.
Although, just for fun, lets consider some of GBRf's recent highlights: last week a class 66 collided with a stationary class 73 which had been left foul of the points in Tonbridge and did quite a lot of damage.
A few weeks ago, a GBRf class 90 was left unattended in Wembley Yard and rolled away, apparently it rolled down the hill and up the other side before rolling back, back and forth until a MOM could get there to put scotches under the wheels to prevent it rolling any further. And in April GBRf had a whole train roll away in Grain, as not enough scotches had been used to secure it. Did you ever here of the GBRf train that Spadded two signals and ran through a junction? Several people isolated the wagon brakes. Then there was Doncaster where the driver fell asleep and spadded a signal at 50mph before crashing into the train infront and wreaking the three three wagons. They have an interesting safety record.
GBRf Rail Operative is a good opportunity to get on the railway, but you'll probably want to move on after about a year.