Very glad you enjoyed "Don’t Lose Hope"! It was the last track I decided on (almost didn't happen), and the second to last track I made, I only had a few hours to spend on it while being very tired (last jam day crunch, woohoo!), so I am glad it was worth it. :)
The voice I use is "Elven true legato" from Zero.G Atlantis 2. I recommend the Zero.G vocal libraries overall, superb quality, SO much content, and very affordable (and they're on sale quite regularly as well). I very barely touched the tip of the possibilities you can do with those libraries for my tracks.
Brass used is in Spitfire's BBC Core. I use the long cuirve articulation for those big powerful sections (which is most of the brass in these tracks). I also use long SFZ for shorts, since they have a very powerful attack, before fading out into a silent long. These make them useful as more powerful staccato's (no round robins though, so less effective in repetition).
Percussion is a mix of sound files for some extra big booms, spitfire originals cinematic percussion for more reverberant booms, and Hammers (another spitfire library) is the brunt of it! I also use the percussion in BBC Core for certain tracks (especially in the second track where it's mostly BBC perc).
I hope that helps, thank you so very much for the nice comment!