!Included in 1.5 R6! Custom ambience for all levels, old radios and fixed monster sounds.
The addon has 3 parts:
Ambience 3: Redone most of the addon and added new sounds. Overall ambience volume is lower with more variety. Removed unnecessary and tuman channels.
3.1: Added night background sounds.
3.2: Enabled AF3 underground and X18 sounds
Compatible with 1.4 and 1.5. Should work on older versions too.