From Team Fortress Wiki
"The Calm" is one of the song titles featured on the official Team Fortress 2 Soundtrack, listed as track number seventeen. Added in the Mann vs. Machine update, it is the song featured in the Mann vs. Machine trailer and is one of 18 main menu startup themes. This was the first song that played during the part of the trailer where the REDs and BLUs join together to fight.
August 15, 2012 Patch (Mann vs. Machine Update)
- [Undocumented] This song was added as main menu music.
- 2:04 to 2:29 is also part of ROBOTS!.
- A remix of More Gun (1:01 onwards) can be heard from 0:37 to 1:20.