As fylle noted, it is very hard to give definitive plans for J onward, and sometimes UK, because of how much variance there can be in prior powers’ turns.
As to your question about Russia and Germany, I can give some tried and true plays that are extremely well accepted by some of the best players I am aware of on the Net.
basically two options, with some flavor to one of them.
Either A) use the above Ukraine hit with the 3 inf 3 tank buy (I go into ukr w only 2 tanks usually, but your risk tolerance will decide that for you). This is my preferred play for getting Germany hacked down early, but it is a mutual small stack trading type of play.
Or B) buy 5 inf 1 art 1 tank, hit belo with 3 inf 2 ftrs and put everything else in WR. Place the 4 inf in Cauc with nothing else but the AA gun. This makes Cauc takeable but rather inefficient for G to capture, and very easy for Russia to take back.
As to the Eastern (Japan) front, I am a big believer in using all ten inf to put up a slow retreating wall against J, with 6 in bury and 4 in sink. Also land 1 R Fig in kaz, this creates a strong opportunity to counter China, which is a big play for slowing the J wave. If J hits bury, so be it that plus China means he has likely skipped sz 52, if he does not slowly retreat the bury inf deadzoning as you pull back.
As to Germany plays:
DO NOT BUY A CARRIER. EVER NEVER EVER NEVER NEVER.
G fleet buys are plays that only work against weak players, and they serve to only slow down your advance on Russia. A good Allied player will simply combine UK and USA fleets, build up their air, and crush your puny combined fleet somewhere around turn 4-6, with minimal losses, and minimal gains on your part.
I cannot stress enough how bad the carrier play is for Germany. Revised is a game of “he who buys the most inf wins” The German BS and Tranny NEED to go to Egypt, and hold it as long as is viable
My G fleet move consists of 1 sub up to sz 3 to block a UK1 Arch counter, the other 3 boats to sz 7, with the tranny bringing the norway inf down to Paris. This forces UK to hit the boats right away, either w big risk to the RAF, or with his battleship, forcing an out of position AC buy on UK1, which is not a preferred play as compared to allies going to sz 12 together and pushing Egypt hard right away.
As to UK1, not only is an India IC skip Viable, but India IC UK1 is a HORRIBLE play unless you are going full KJF with all 3 powers. An India IC with USA going Atlantic is 15 bucks spent to build Japan a factory. You cannot hold it without comprising your entire Russian trading deadzones in Europe.
ONLY USE THIS IC PLAY if USA is coming full Pacific.
My preferred UK1 play is to buy 2 inf art 2 ftr, and go to sz 12 with 2 loaded trannies and BS, to be joined by the USA boats. This early africa ground goes a long way to reclaiming Egypt against a strong G player who is committed to hold it with significant J assistance (You do not get Egypt back against me until I let you, even if UK can counter Egypt on UK1, I will often get to 30-50 units holding it in a long slow game)
These basic opening plays (and more importantly the type of thinking about the game they represent) will go a long way to improving your win rate in Revised.