Description

When spawning a new music via chat command there are problems.
These problems happen in offline and online and are not fixed by rejoining a server.

1. Spawning a challenge_music will cause music to play for 2 seconds and then stops suddenly, repeatedly.
   This happens both offline and online and isn't fixed by rejoining the server. The music stays bugged forever.
2. Spawning a ctf_music on top of pre-existing other music will cause the ctf_music to play on top of it. "KAGWorld1-14outro" will be used even though the match timer is running.
   This happens only in offline.
   In online, war_music, music and ctf_music will correctly replace each other.
3. You would think tdm_music would work but it is named simply "music".

Tested in offline and online Sandbox. Other game modes may differ.

Reproduction

Go to offline Sandbox.
!ctf_music
Notice two musics playing on top of each other.

Go to online Sandbox EU server or offline Sandbox.
!challenge_music
Notice music getting bugged.

Go to online Sandbox EU server or offline Sandbox.
!tdm_music
Notice chat saying it doesn't exist.

Expected Behavior

Spawning a ctf_music should behave the same in offline and online, correctly replacing the existing music and not playing the outro when the match timer is still running.

Spawning a challenge_music should not wreck the music but replace the existing music and keep playing as normal.

TDMMusic should be configured as "tdm_music" instead of "music" for consistency reasons.