what is your opinion on the halo 5 soundtrack
For me personally, Halo 4 was only passable because of the remixes on the Limited/Deluxe Edition soundtrack which are just good tracks in general. Halo 5 just goes over my head as "Eh."
It's very hard to describe so I'm sorry if I'm don't do a great job.
The actual orchestra stuff for Halo 4 and 5 isn't offensive, but it just feels...too sweeping? It's got that quality of a lot of generic soundtracks where the drums don't feel as powerful, where they use common violin chords and there isn't clear cut themes repeated through the soundtrack, just one kind of basic atmosphere that gets played over and over again with some minor variation.
One thing that Marty and Michael did was a lot of experimentation. Halo 2's soundtrack is probably my favourite, because it uses such a wide array of different instruments and themes, yet they managed to blend them so well. Compare to Halo 5, and while there's some good tracks here and there, I couldn't tell you any one piece stands out from the others. There's nothing I'd replay 90 times over and over because I can get the same effect on any other song in the soundtrack.
I think the best way to describe it is by mood; if you can think of a mood, than any Marty/Michael soundtrack will have a song that covers it, but the current soundtracks only really encompass two or three moods at the most (battle themes and kind of sadness or introspective, if you know what I mean). All of the soundtracks have quality, but the original soundtracks also have the variety the future games lack.