Dodek's Improved Sound Evnironment (DISE)'s goal is to create an immersive and enjoyable experience of playing BF2 by enhancing its sound environment and testing it to its limits.
This is a very basic video demonstrating ESS. It's a very simple yet powerful system of achieving sound changes depending on the distance. It uses 4 sounds at the moment: Bolt sound, heard at very close range, dist1 sound which can be heard up to 20 meters away, dist2, which can be heard about 100 meters away and dist, which can be heard about one kilometer away. You can't really tell the difference in this video because this version is done very quickly just to show what ESS can do. Expect better for next video.