NS
Don't know what Brigade in Scotland you are going for but when I was involved in the initial interviews I was shocked at how many had never read the literature that the brigade issued them with!
This was a few years ago and I don't know how valid it is now but make sure you have an idea about diversity and exactly what it means.
It does not mean "because people are a different religion or colour, it does not necessarily mean they're weird"
which was an example someone got from a failed candidate at a recruiting interview.
In relation to key issues affecting the service, all I can suggest is what Firefighters do now as opposed to when I retired about 4 years ago. Now they do Urban Search and rescue, water and mud rescue and rope rescues not to mention the increased terrorist threat- sorry, I nearly forgot the most important thing you will have to do as a firefighter, COMMUNITY SAFETY!
Anyway , all the best.