Stealth Intro:
Interstice of Time (First 2 Seconds)

Stealth Proper:
Interstice of Time

The song does not loop, so I spliced the first 2 seconds out as the Intro. The rest loops from there.
https://www.youtube.com/watch?v=IqDvbB1Lj0Q

Control Intro:
That Which Escaped the Darkness (First 8 Seconds)

Control Proper:
That Which Escaped the Darkness (9th Seconds onward)
https://www.youtube.com/watch?v=sQjOBHnXs2E

Same as before; spliced to conform to looping purposes.

Build-up:
Basement (First 58 Seconds)
https://www.youtube.com/watch?v=w4c-Kfu6-hU
It’s a bit long for a build-up song, but as most heists will transition to the next song before the song ends, it gives leeway for the song to continue before the Assault phase.

Assault Intro:
Wiping All Out (First 14 Seconds)

Assault Proper:
Wiping All Out (15th Second onward)
https://www.youtube.com/watch?v=-iy47Q--EbU

Same as before; spliced to conform to looping purposes