Ok, this is just from the music files that I extracted from HW.
Ambient Tracks:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10 (should definitely be used), 11, 12 (definite), 17, 21, 24, 25, 28, 32, 33, 34, 35, 38,
Battle Tracks:
13, 14, 15, 16, 23, 27, 46,
Dont use:
18, 19, 20, 22, 26, 29 (copyrighted, its the one by Yes), 30, 31, 36, 37, 39, 40, 47, 48
Some of the ambient ones can be used for breifings and mainhall.
The battle tracks can be broken up, there are some pauses between the fast paced parts.
You can still use parts of the last bunch for Jump music and victory music, its just that the rest of the track has noise in it (they were used during cutscenes)