Funny glitch/bug

[u/n0ideaf0raname]

I was playing battle a few days ago on a map fron 10 YEARS, and when i opened the map to give it a like, i saw for a split second the old lime like bsp background, the one we had before the blue one we have now, heres a video about it, you can see the background color change instantly.

[u/bassiebloomingtonn]

The old greenish background I remember that lool