Tbh, an official collected EP with all the random b-side tracks floating around would be really nice.
Theme for Tetsuo: The Bullet Man
Juno
Hallowe'en
Theme from Call of Duty: Black Ops II
Possibly these, too:
Zoo Station
The Sleep of Reason Produces Monsters
Speaking In Tongues
(Also, Before The Flood on CD).
There may be others. I forget.