I don’t even really follow my ratio thing, it was just something I worked on to figure out the cheapest and most effective way to build an army that is good on off and def regardless of what you are attacking or what is attacking you.
In reality, I’ll buy an rt here or there early if I have the extra 1 ipc, otherwise it is inf with maybe 1-2 arm (for ger or rus), all inf (for jap), inf + air (uk and us).
For Rus, I like arm b/c you can threaten a lot from Wrus or Cauc, and if I need some quick punch as Ger or Jap approaches then I can buy a few rt if I think they may help in a strafe or something.
For Germany, I like being able to get from Ger to Ukr in 1 move and threaten WE from EE so I need the 2 move of the arm. Â Plus I can load up on Rt if I take Cauc and quickly double some of my inf power. Â I usually have about 3-4 rt, so one purchase of another 3-4 puts me at 6+ and I’ll usually be overloaded with armor but it seems to work.
For UK and US - I like inf + air early then depending on how income shapes up I’ll start going 5 inf, 3 arm (or rt) for UK and 6 inf, 2 rt (or arm) for US + air.
For Japan, I go inf early, unless I have the extra IPC, then once I get my IC’s I throw in 2 arm per IC b/c I like to be able to move form Man to Sin in one move and then Sin to Cauc/Mos in one move.