Good Day,
I concur with Marek Tucan, they even did studies that proved it, although I believe the average soldier already knew this from experience. It was also why weapons like the famed PPSh 41, Thompson, MP40 and StG44 etc were favoured. All our modern Assault Rifles were born of this knowledge. So your infantry aren't yellow or gold bricking they are working as they should be. Just a hint make sure you have some dedicated MG units in your mix then your ability to reach out and touch someone will be enhanced.
Cheers
Cheers