Is it just me?

[Steel God]

First shot should be lethal, after that I'd buy that there's a lot more suppression than killing, since once you know there's an MG out there, you'd naturally get a lot more cautious in your movement. But a squad moving in the open that gets opened up on by an MG42 (or most any HMG configured weapon) should lose a bunch of troops KIA and WIA if that initial volley is within the lethal range.

My 2 cents worth.