Music in Arma is also a question of representing the game and its philosophy.
Sure, fancy rock music and "epic" music is excellent to support certain situations, but doesnt Arma have more to offer? Deeper Feelings?
It makes you think. There are extremely thrilling but also a lot of quiet moments.
I think this should be reflected in the musical choice. There should be tracks that do not dominate but rather underline an specific experience and are tailored for it.
When you hear the music, close your eyes and then see things in your mind that actually fit to the scenes the music was thought for, the artist has done everything right.
This should be targeted for music in Arma 3
Choosing an orchestra to support your music is not a matter of style nor does it implement any specific kind of music. (Overbearing etc)
It is in fact a matter of quality and soul of the sound which is uncomparable.
You can play everything with an orchestra or symphony. It will only give it an completely new "feel".
An orchestral support would be extremely nice and raise the quality immensely. I am convinced Ondrej is fully aware of that and I am looking forward to what he will accomplish!
A very important part of the soundtracks is the menu music.
While being in the menu, the user is not distracted by visuals and therefore this is propably the only track he is consciously experiencing. This makes it extremely sensitive.
Especially the intro is important. When you resume to the menu, start the game etc. you hear this very intro.
Therefore I think it should contain a "soft" intro without any dominating sounds.
For the Arma 3 menu music, I imagine a very clean sound with a slightly futuristic inspiration. Not meaning some techno influence but a rather futuristic style, much like futuristic architecture with an minimalist touch which is in harmony with the concept design maybe supported by a female choral voice
The Assasins Creed theme was doing it quite good
A small selection of clear and bright sounds, underlayed with a futuristic motive and finished with a minimalist touch would fit perfectly into Arma 3