Guy on Reddit found and abused the spot. You can get up on the balcony close to the spawn that’s against the gate, with the long sight line to heavy. From there you can shoot out of the balcony but others have a hard time shooting in. Even Silence and Squall can’t kill the person in the spot. (I have the link to the video but wasn’t sure if I could post a Reddit link here/didn’t want to make the spot more known)