In 2-2 don´t buid bases or bunkers in the range of enemy mortar. Better close to own base.
In the beginning, we try to posses 51% of the map and don´t rush the enemy lines. OKW and Wehrmacht Pionieers have to build sandbags. Green cover on enemy side hast to be fenced.
If there is a pushback on one side, we go to the other, to outnumber the enemy.
If I make an early mortar, I need protection against infantry, which is trying to circle around my MG. Especially when it´s a double team attack. If I don´t make mortar but infantry, then the OKW can go more far.