Doing two of the very early ECW depot moves bringing Class 377’s into Brighton Station, I’ve only managed to get Bronze medals. I don’t think it is possible to get Gold or even Silver. I’ve not exceeded the speed limit and I’ve stopped exactly where I’m supposed to, but all I get is a lousy bronze medal. I don’t like bronze medals
That was also the case in TSW2020 with the depot move services in ECW. And as routes, scenarios and services were just ported over, and not patched, it is the same in TSW2. You'll have to learn to live with bronze medals I'm affraid
I've also found that the 2309 Eastbourne to Brighton, I got a perfect score no speeding, 500 at each station, (5,350) didn't even get single medal for it strangely Although I did start the service by spawning on foot, does this affect the potential to get medals?
if It's anything like TSW2020, my understanding is that the medal thresholds are calculated manually by the Devs when designing the service. if they get their sums wrong, you end up with this situation, that no matter how careful you are, gold and silver can be impossible, You could try running and back and forward multiple times to get extra driving points
Have you gone into timetable mode and checked if there’s been a medal awarded for it at all? I found on a service I did from spawning on foot on Peninsula Corridor that it doesn’t tell you what medal you earned at the end of the job but it had still awarded me a gold.