ok, heres what i normally do in warfare. first make the best troop you can. second get some mgs in the trenches plus some assult. then get 2 assult and 1 mg in trench, make 1 more assult when it gets to trench launch the 2 other assults. basicly batter them to subbmission.
well always put machine gunners in your trenches first and save your strikes tell the enemy is on the move when your taking another trench use grenaders and upgrade your moral and reinforcements all the way nothing on strikes until you max out on machine gun reienforcements and tank reinforments then get gas up