I will try to keep these updated, and feel free to DM me here on SRC if you have any questions or if the doc won't let you have access or something.

https://docs.google.com/document/d/1fkfjAObxYylsI7iy2RhQCgfOvzx-R37tfAZGP7rICsE/edit?usp=drivesdk

Here's a clip showing exactly how useful the Railgun blade can be and should ar minimum help let you hear the sound que you're trying for. Note you don't have to use it on the normal enemies but it will help if you need to find them.