This happened directly after the 152 game, dunno if this is intentional. Depending on where you are, maybe turn the sound down a little.
https://gamerdvr.com/gamer/b84-w56-h88/video/101387220
or the waypoint link if you don’t like gamerdvr:
https://www.halowaypoint.com/en-us/games/halo-5-guardians/xbox-one/game-clips?page=1&gamertag=B84%20W56%20H88#ugc_halo-5-guardians_xbox-one_gameclip_B84%20W56%20H88_3418374a-a102-4439-8e1f-eb1da6925dc9