DISCLAIMER: Some of these may be outdated, as this dupe gets updated with more sounds. I don't feel like updating these discussions every time i update the dupe with a single new sound.

"Soundscape Wind Loop"
ambient/atmosphere/town_ambience.wav

"Soundscape Battle Loop"
ambient/explosions/battle_loop1.wav

"Soundscape"
ambient/levels/streetwar/gunship_distant2.wav
ambient/levels/streetwar/strider_distant1.wav
ambient/levels/streetwar/strider_distant2.wav
ambient/levels/streetwar/strider_distant3.wav
ambient/levels/streetwar/strider_distant_walk1.wav
ambient/levels/streetwar/city_riot1.wav
ambient/levels/streetwar/city_riot2.wav
ambient/levels/streetwar/apc_distant1.wav

"Soundscape"
ambient/levels/streetwar/city_battle1.wav
ambient/levels/streetwar/city_battle11.wav
ambient/levels/streetwar/city_battle12.wav
ambient/levels/streetwar/city_battle14.wav
ambient/levels/streetwar/city_battle15.wav
ambient/levels/streetwar/city_battle16.wav
ambient/levels/streetwar/city_battle2.wav
ambient/levels/streetwar/city_battle3.wav
ambient/levels/streetwar/city_battle4.wav
ambient/levels/streetwar/city_battle5.wav
ambient/levels/streetwar/city_battle8.wav
ambient/levels/streetwar/city_battle6.wav
ambient/levels/streetwar/city_battle17.wav
ambient/levels/streetwar/city_battle18.wav
ambient/levels/prison/inside_battle9.wav
ambient/levels/prison/inside_battle7.wav
ambient/levels/prison/inside_battle4.wav
ambient/levels/prison/inside_battle1.wav
ambient/levels/prison/inside_battle2.wav