The previous event had this:
https://azurlane.netojuu.com/images/1/1b/I-404_Sec1Skin2JP.ogg
https://azurlane.netojuu.com/images/3/37/I-404_LogSkin2JP.ogg
https://azurlane.netojuu.com/images/6/69/I-404_Affinity4Skin2JP.ogg