For Artillery mate the gun line is great and all but having worked with the artillery a lot and knowing a couple of artillerymen the real goochie job that everyone wants is to be part of a FOO (Forward Observation Officer) party.
Quoted for maximum truth.
Pretty much all of the rest of that is what was told to me as well. Only other things I'd add is that right now British Gunners spend a lot of time in the infantry role too so be ready for that - and I've lost count of the amount of Facebook messages I've seen despairing about what the squaddies have done now and how they're going to have to deal with it. My favourite being a mate who spent a weekend driving half of England and back because one of his men made a bow and arrow from radio antenna and shot another guy with it.
That, and that infidelity during tour is rife.