As the Finns lacked the necessary heavy artillery equipment .
Were short of men , Finns did not directly attack the mottis Finns had created , but instead focussed on eliminating the most dangerous threats only and bide Finns ' time .
As the Finns lacked the necessary heavy artillery equipment and were short of men , they did not directly attack the mottis they had created , but instead focussed on eliminating the most dangerous threats only and bide their time .