---DOCTRINE ADVICE---
-Allies-
DO: Get artillery ASAP. You have a speed loss, but the truth is Artillery isn't very fast to begin with. It's crucial to success, and should be one of, if not just the first, things you research.
DO: Get Self-Propelled artillery ASAP. As soon as you can, replace regular artillery with SP variants to close that speed gap.
DON'T: multitask with artillery. Have one of each, and then some infantry to accompany it.
DON'T: COMBINE SP AND REGULAR ARTILLERY. If you do this, I am reserving the right to slap you. It's a stupid, inefficient idea. Stop doing it.
-Axis-
DO: get Anti-Tank guns as the first thing you research. Due to their increased firepower, they become even more broken early game.
DO: use artillery in conjunction with nailing down those weird, hard-to-invade AI countries that got lots of hills.
DON'T: Spam artillery. Your economy can't take it.
DON'T: invest in rocket arty too quickly. Yes, it's effective, but it's only as strong as your wallet.
-Comintern-
DO: get SP-Rocket Arty ASAP. Rockets are your friend, given your cheap production costs.
DO: keep an AA and AT gun in EVERY SINGLE CITY. NO EXCEPTIONS. You need all the defensive power you can afford, given your reduced firepower.
DON'T: let the enemy get too close. This was true before, and it's even more so now, if the enemy approaches your artillery batteries, say goodbye to them. Your firepower is so weak it can't stand up to it.
DON'T: focus solely on one type of artillery. You need to produce all 4. Your economy demands it.
-Pan-Asia-
*sigh* ...Ok. This is a tricky one.
DO: Evaluate your terrain first. What your terrain includes dictates what artillery you need first. Lots of forest? Anti Tank. Lots of hills? Anti Air. Lots of mountains? Artillery Bombardment ASAP.
DO: Experiment with offense stacks. Your increased speed gives you this option, but don't overdo it, or rely heavily on it. Anti-Tank + Militia is a good mix, as is militia + arty.
DON'T: worry too much about rocket artillery. To be terribly honest, I'd just stick with regular artillery, as having a more expensive unit with less hitpoints than normal doesn't seem super worth it to me.
DON'T: worry too much about self propelled YET. I'm having trouble naming countries in the Pan-Asian doctrine with a lot of perfectly level ground, so take some first, then revisit it.
And finally...
-ALL DOCTRINES-
DON'T: NEVER, EVER, EVER leave a SINGLE CITY without an ordinance foundry. You need them in every single one. You never know when you need to conjure some Anti-Air!
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