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Kantai Collection menu mode

it's Kantai Collection menu mode.But it does not include the background video.
pan. baidu. com/ s/1D E17TyJh cihaZIKCSX Tfbw password:km8b (download the background vedio :みいろ )
In that website please click“下载” then choose the “普通下载”,and it will be downloaded.
1.copy the file 4 times
2.named "l4d2_background01"-"l4d2_background05"
3.extract the file to [\Steam\steamapps\common\left 4 dead 2\media\]
Let it replace the old file.(please copy the old file as backups)
4.done
pan. baidu. com/s /1GSwael4PJi1eHBijPEyKkQ password:4xij , it's the music video of Kantai Collection:ふぶき（Fubuki）
you can also download it as background vedio if you like.

if you replace the background video,but the official background music will be played.So please delete the file at
Left 4 Dead 2\left4dead2\sound\music\l4d2 (please copy the old file as backups)