When prone and having the mg-42 gun deployed if a field ops or medic tries to give you ammo/health you lose your horizontal mouse movement until they stop. i.e. You can no logner aim to the right or left, but you can still pitch up and down.
Also when achieving level 4 of heavy weapons you don’t get a SMG right away… and you can’t pick one up either. You need to in fact be killed and switch to another weapon as a soldier to get it.
Also soldiers with an offhand SMG can’t pick up enemy SMGs like medics or feild ops can.
./Premiumjones