Here's a video of the old MG42 sound (and also a demonstration of how laughably overpowered they used to be back in the day): https://www.youtube.com/watch?v=B7Mb1UqZH0g
Amazing how it went from doing that, to being the weakest MG in the game.
Then again, going from super OP to kinda crap seems like how most games are balanced anymore. Wish there was a middle ground...