ROUGH TIMELINE DRAFT:
POD - ~ early 1870's
The Czar uses their power to force industrialize the country during the decade, then follows by spending the latter '70s and '80s to militarize the country.
~1885: Russia now industrialized and with a better developed military begins giving into workers demands to give more benefits and potential basic welfare systems to its workers
~1895-1905: Exponential economic growth and stability, the Czar begins to centralize the empire and wipe out potential threats (e.g. socialists like Lenin and Trotsky)
Russo-Japanese War: An industrialized Russia with much better grade military equipment ends up becoming victorious in the war, the Kurils and and Chinese port-city of Lushun are seized, and South Sakhalin is never lost.
1911 Russian Invasion of Tabriz:
The Russians are even more successful than IOTL, they seize most of Iranian Kurdistan and Iranian Azerbaijan, as the year passes to 1912, the Russian rush into Mashhad and secure the southern Caspian coast in Iran by autumn 1912. In 1913 the Russians seize Hormuz additionally and the Iranian military at this point is defenseless to stop them.
WW1:
During the war, especially after multiple decades of mass militarization, Russian weaponry, as well as being able to supply their own troops, is practically on par with the Germans and Brits, due to their superior man power, if the Russians are ever caught in trenches on the eastern front, they can quite literally "rush b" or overwhelm trench machine guns (despite being costly). However, Russian military tactics are much less reliant on quantity of manpower in this TL.
The War:
1.Almost immediately at the beginning of the war, due to German and Austrian underestimation of Russian troops as well as lack of infrastructure, Lwow and Lviv are quickly seized, with the Russians being able to seize everything to the east of the Danube River by 1916 once they break past Austro-Hungarian Lines.
2.The Russians hold a campaign to rush to Gdansk, they circle around East Prussia, and rely on their Baltic sea fleet to force the capitulation of East Prussia. When the Russians overwhelm AH in Czechia, they are able to attack from 2 fronts into Silesia, and then begin campaigns into Saxony, Bavaria, as well as a campaign north into Pomerania. Towards 1917, the war reaches a stalemate along roughly OTL's modern day Polish German border, with the Russians finally spearheading German fortifications, reaching Berlin. Meanwhile Russian troops in Saxony push north to meet the other troops in Berlin, essentially beginning Russia's push into roughly OTL's Socialist East Germany.
3.Russia overwhelms the Ottomans in the Caucasus much like OTL, except they open a front through Iran and they seize most of Iraq and Syria by the end of the war, all while using their navy to seize Constantinople and the remaining Marmara region. Towards the end of the war, all of Anatolia's coasts are controlled by the Russians, and the Russians force the Ottomans into Armistice.
4. Russian troops in European Marmara begin an assault on Bulgaria, with Russian troops marching through Romania to aid in the conquest of Bulgaria, not to mention in order to aid Serbia.
Versailles:
Because of just how much land Russia occupied by the end of the war, they can really force their demands against the will of the Brits and the French.
-Russia annexes Galicia
-Russia puppets Hungary, Czechoslovakia, Romania (now with post ww1 borders), as well as Bulgaria, which keeps their Greek lands because the Russians want a stronger Bulgarian puppet
-Russia seizes Constantinople, East Prussia, Trebizond, Kurdish, Armenian, as well as Georgian Anatolia.
-Russia forms Poland, this Poland is much like post WW2 Poland, owning Pomerania as well as Silesia, not to mention Danzig, it is a Russian puppet.
-Note: Russia also annexes the eastern part of Slovakia in Czechoslovakia due to it being considered a part of "Slavic Galicia" - a fabricated excuse for annexation created by Russian diplomats. Poland also gets a small slice of this land
ALT "Sykes-Picot"
-Turkey is formed as an independent state
-Marmara is formed as a Russian Puppet state to secure Russia's control over Constantinople.
-The British in this TL are able to take over North Yemen and the West Arabian Coast due to the Ottomans being overwhelmed, therefore the British own the entirety of the Arabian Peninsula's coastline, they also own Trans-jordan and expand Kuwait to post 1920 borders.
-Russia receives a port in Southern Iraq in between Kuwait and Iran
-Eventually after almost 2 years of Russia occupation of Iraq and Syria, it begins to cause them some over extension of troops, they form an independent state of Kurdistan which owns all of Iraqi Kurdistan as well as Mardin in Syria. The remainder of Iraq is made independent, and Syria (which owns Lebanon and Antakya) is gradually turned over to the French in a matter of no more than 5 years.
A Rough Map Sketch just to get the Idea Across:
INTERWAR:
-The resources and expeditionary forces spent by the allies to prevent the socialists from winning the Russian civil war are now used to stabilize Italy, Victor Emmanuel III remains in power, Italy remains a kingdom, no Mussolini, no Fascism.
-In the Weimar Republic, Hitler is much more moderate than IOTL, this is because he grew up in an Austria that was under constant Czarist influence, the National Socialist Party is still a strong movement, but since there has not been a single socialist nation yet, the people of Germany seem much more willing to opt for Communism, the Social Democrats and the KPD (Communists) hold much more power and influence in the government and have a higher appeal in Germany in General than the Fascists.
-Spanish Civil War: idk yet.