my strategy for playing as Germany is to build up the industry in the provinces apart from east Prussia as well as building anti aircraft guns double the size of the industry (e.g 10 factories = 20-40 A.A guns) I than start to put research teams into industrial tech tree (experimental assembly line, sturdy equipment, etc) i also start to start to research land,air and sea doctrines to give my units a boost when i decide to declare war on poland and etc. those are the first 3 years,in 1936 i start to build up my infantry and luftwaffe as well as my navy until i have a sizable army, air force and navy until i reach 1941 and then lash out at czechoslovakia and then the backwards poles, shortly their after i annex yugoslavia greece and bulgaria to increase my ic than i steam roll the french frogs who are not even a challenge anymore, next comes britain, denmark, norway, sweden and finally finland. after that year i start to put garrisons in the annexed countries and put my armies on the soviet border during the 4 year period (42-45) I repeat first three years (33-36) and than repeat the 2nd step (37-41) than war time baby, i make the soviet fold and annex them fully, than comes the rest of the civilised world. that is my grand strategy