You want to go this way then?
Ok.
Grens have utility, therefore can't compete against tommies or rifles, doctrinally they have even more utility on form of map hack and good all-range weapon(in case 240mp60muni squad being weaker then 280mp120/140muni squads for whatever reason isn't enough of an argument for you).
but tommies and rifles have plenty of utility as well?
requires a crawler and you remembering that this ability even exists
so how do you deal with main line infantry then?