King Tiger need LV14 Munition Factory
Maus need LV5 league Munition Factory
It's hard to produce
BUT FLAK41&&M40 only need LV1andLV2 league Munition Factory
we need Munition factory production t34 and m26 tank
such as
light tank lv3
m4 tank lv5
t34 tank lv7
tiger lv 9
tigerB lv11
mouse lv13
tank need Higher hp and Higher attak,because tank have not Area Of Effect
finaly modify tank skills,tank can building Turret,have more HP,Attack Range,Attack,Defense.but cant move