I'm starting a game as Hungary. I've decided that my army will be comprised of Infantry divisions of 3 INF and 1-2 R ART.
What I am trying to do now is think of what will my armored divisions be comprised of. The purpose of these guys is to punch a hole whenever the infantry get bogged down by the enemy. I have decided that MOT, MEC, HARM, and SHARM cost way too much in research to be viable options. Right now I am considering a base of 3 ARM brigades, but I don't know what to use with it. I am considering SP Art or SP R Art. Which would be a wiser choice or is there something I could completely improve on? I plan to lower my neutrality, join Axis, and annex Yugoslavia, Romania, and Bulgaria (maybe Greece if italy is too slow) and help out the other Axis powers (Germany in Russia, Italy in Africa)
Paglia pretty muched summed it up. You will be leadership capped, hard. Even with your conquests. My current game as Romania, I am struggling to keep up to date with infantry techs/doctrines, with just a dabble of effort into the Industrial screen. IC won't be too much of an issue, because what is worth it to build will be limited by your crappy research. Try to conserve some MP to build stuff you are researching to help with practicals. But if you stay up to date with infantry tech and doctrine, and try to research the +IC tech/agriculture/casualty trickleback/artillery techs as you can, you will find you have nothing left over for basic armor/rocket artillery techs, much less the doctrines needed to make your armor halfway decent after 1941 or so. With your conquests, you might at most get to 8 or so leadership.
Your option is to buy the tech from Germany as Paglia mentioned, but your doctrines will still suck. Same goes for any airforce you will want to build.
But be wary, that if you join the Axis too soon, the threat from your conquests may push the world to war quicker, which will hurt your chances to win. I would align to the Axcis but stay out until you are done conquering your neighbors. Then join the Axis once Germany invades Poland. Any luck, they will not issue a call to arms until Barabrossa so you can avoid British invasions, although the bonus from hitting service by requirement sooner may be worth it to hassle with the British invading the former Yugoslavia. Especially if your army is halfway decent.