Schubert - Ave Maria
by Schubert Archive
6:16 - 72,303,224 views

Full Name: Ellen's Third Song, D. 839, Op. 52, No. 6.
Sung by: Barbara Bonney.
Composition by Franz Schubert, ✝ 1828, in the public domain.

Call of Duty Modern Warfare 2 Gunfire Ambience
by southparkfan200
5:23 - 135,769 views

I don't know why i uploaded this but the gunfire ambience is just so relaxing to listen too its because you usually hear it in some single player missions and most multiplayer levels. you can find this in your game files (PC version only), but you have to extract the iw files, ex. iw_14.iwd. iw_01-iw_11 are just images and iw_14-iw_20 are all sounds in the game.

Air Raid Sirens followed by the All Clear (Very good quality recording)
by J8286590
3:44 - 3,073,679 views

A recording of the Carter Gents air-raid sirens and all-clear that would have been a very familiar sound to all civilians in Britain from 1939 - 1945 along with bombing, destroyed cities and thousands killed each night under the heavy bombing raids by the Luftwaffe.

Crowd panic sound effect
by TheMSsoundeffects
2:16 - 898,825 views

Sound of a crowd fleeing in fear and terror. Not bad for a zombie attack or a shooting incident scenario in gaming or video making. Sound was ripped from Metro Last Light, that game has some awesome sound effects.

Download link:
http://rapidshare.com/files/3624792550/Crowd%20panic.mp3