In the last match I played, I noticed some persistent noises coming from right behind the yellow crate in mid on Metro. Not sure when it started, but once it got going it persisted for the rest of the game.
Since it was in Mid, I'm gonna guess that this was at the 0,0 coordinates of the map?
Video attached.
This happens every so often - i've seen sounds come from that spot, and sometimes some weird floating visual effect is in that spot - It's definitely 0,0,0 in the map editor. i don't have the clip of it on hand, but i think they fixed the visual bug, but now the audio bug has taken a similar effect.