Simple let the h.u.g.e And the m60 pick up smg ammo it wont make them any better then currently and its just a qol I get they are meant to be mag dump weapons but it doesn't hurt to have em reloadable in fact they already got animations etc for that just need to change a line of code for their ammo type.
That doesn't include why I -1d this lol. I did a -1 because it's like saying "oh yeah snipers should be able to take m4 ammo"
There is also no set ammo for machine guns it is set as undefined in ttts base code there is no “lmg” ammo box.