Tips on military production priorities and decent, mass producible infantry/tank template designs?
I feel that allocating certain factories to produce certain niche equipment - and consequently running out of said equipment extremely fast - is ultimately my biggest Achilles heel in this game. I've watched many videos on Youtube from various seasoned HOI4 players and can never understand how these players manage to turn somewhat underdeveloped powers like Greece or Finland into industrial juggernauts that almost single-handedly gobble up half of Europe lol. Especially when they mass produce tank divisions that have like 30 combat width using hundreds of medium tanks that they miraculously have in surplus by 1940 lol.
Currently, I mostly use the 25 combat width - 11 infantry, 1 artillery, 1 support artillery, and 1 engineering company - for most nations (both big and small) and just try to frantically mass produce them as soon as possible before 1940, while simultaneously building military factories. I also try to allocate two factories to trucks (for supply related purposes) and a minimum of two factories each to CAS and Fighters (total of 4), though obviously gradually add more depending on how many factories I have available. Despite my efforts and even buying extra infantry equipment from other nations in the process, though, I almost always get demolished.
If anyone has any tips on how to better organize my military factories and what to prioritize in terms of production, regardless of the industrial size of one's nation, please let me know. Please be kind since I'm horrible at this game lol.