Default BIS music tracks found on OFP Resistance are as follows.
Default OFP Cold War Crisis tracks:
track1 track2 track3 track4 track5 track6 track7 track8 track9 track10 track11 track12 track13 track14 track15 track16 track17 7thoverdose 7thlifeless 7thimgonnafly 7thdecide 7thdarken 7thmylife
OFP Resistance tracks (includes the above CWC tracks too):
rtrack1a rtrack1b rtrack2 rtrack3 rtrack4 rtrack5 rtrack6 rtrack7 rtrack8 rtrack9 rtrack10
To play these tracks you need to use the playMusic command, like this