hi - make ost 5 or 6 men squads that can shoot effectively while moving - then everything should be fine
. As long as the're 4 men squads and completely terrible at shooting while moving and basically crap out of cover there'll always be a problem. Wehr mortar may be effective on paper but when it has to counter a fraction with a lot of mobile units it becomes crap. Conversely, any artillery piece will hard counter ost as they have to stand still behind cover to be effective. This is generally a big problem of this game - very effective USF units on attack vs static units of ost. Something has to be done here - why not give grens a choice between mp40 upgrade and lmg, they also should get some access to smoke grenades - then USF can have its mortar.