Thanks Jazon! Wow, that's of great help that map, thanks for showing interest! I will use this. And I would like any playtesting! I do have some work left however, currently only the Galician part of the scenario is sort of ready (it misses decision events though, and pop-ups). I do plan that after the Battle of Tannenberg, superior German reinforcements will trickle in Silesia, so the Central Powers player can go for an attack against Poland and the Russian player will have to sent reinforcements there. But I also want to give the Russian player the possibility to try to break through the Carpathians as I also have mapped a substantial part of Hungary.
The Russian order of battle was not easy to deceipher. Der Weltkrieg (German official history of the war) has a map of Russian Corps at the beginning of the war, and coupled with
https://web.archive.org/web/20031204135 ... html#CORPS I plucked the divisions that were in each Corps.

- Der_Weltkrieg.png (1.87 MiB) Viewed 3272 times
The Austrian official history "Österreich-Ungarn Letzter Krieg" also has a very useful diagram showing the divisions of the Austro-Hungarian and Russian Empire facing each other, however only for 1st October.
However, I found out that the number of divisions summed together in these Corps (from the picture of Der Weltkrieg) do not fit the total number of divisions the Russians wielded. I think this is because it omits the divisions that were held in army reserve. To get these divisions, I did perhaps a bit of heresy and went to a competitor game of Strategic Command WW1, namely To End All Wars, and looked there in every Russian army to see which divisions were held in army reserve. With this I could get the right number of Russian divisions.
My Russian battle of order is currently:
4th Army (Von Zaltsa, Lublin assembly area):
XIV Corps (18th ID, 13th and 14th CD),
Grenadier Corps (1st Gren ID, 2nd Gren ID, 1st CD),
XVI Corps (41st ID, 47th ID, 5th CD, also 45th ID but not sure if that belongs in this Corps),
and as army reserve 64th and 65th ID and 2nd Kazakh Cavalery Division.
5th Army (Von Plehve, Kowel assembly area):
XXV Corps (3rd Gren ID, 46th ID),
XIX Corps (17th ID, 38th ID, 7th CD),
V Corps (7th ID, 10th ID),
XVII Corps (3th ID, 35th ID),
and then 66th and 67th ID and 1st Kazakh Cavalery Division as army reserve. I also added the 61st ID and 70th ID, as well as the 1st, 2nd and 3rd Don Cossack Cavalery Division because they were added to this army according to the 1st October unit deposition map by the Austrian official history.
3rd Army (Ruszky, Rovno assembly area):
XI Corps (11th and 32th ID, 11th CD),
IX Corps (53rd and 44th ID),
XXI Corps (5th and 42th ID, 9th CD),
XX Corps (28th and 29th ID),
X Corps (9th and 31st ID, 10th CD),
III Cacausian Corps (21st ID and 52nd ID, 3rd Caucasian Cossack Division),
and as army reserve 63rd and 62nd ID, and 6th CD and 3rd Kazakh CD.
8th Army (Brusilov, Proskurov assembly area):
VII Corps (13th ID, 34th ID, and a made up Crimean Cavalery Division, but in essence many separate Crimean horse regiments belong to it, like Host Atamans Denisov Don Cossack regiment)
VIII Corps (14th ID, 15th ID, 8th CD)
XII Corps (12th ID, 19th ID and 12th CD)
XXIV Corps (48th ID and 49th ID)
Army reserve: 68th and 69th ID, and 6th Kazakh Cavalery Division
Now there is also a Ninth Army, under Lechitskii, amassing near Ivangorod. It has the Guard Corps and XVIII Corps, and 80th ID and Nowikow Don Cossack Cavalery Division. To be honest this is the most confusing army, because it apparently gets two Corps from the 4th Army and then forms as an independent army.
I compared your picture with my order of battle, and it fits!: the right corps with the right army etc. I assume those circles filled with diagonal reds are cavalery divisions. It fits as well, because for example the 3rd Army has the 11th, 9th and 10th CD and they show on your map!
Currently I follow mobilisation scheme roughly according to the following sketch of Russian mobilisation by Golovin (a Russian officer from WW1), note that these are purely infantry divisions:

- Golovin_mobilisation.png (190.83 KiB) Viewed 3272 times
Currently how I exactly mobilise for the Russians is kind of arbitrarily chosen, I check where the original assembly areas are of the Corps, so that for example a Kazakh Corps takes longer to arrive. But in general pretty much every Russian division arrives in August, with 30th August the last tranch. Perhaps not exactly accurate. I also have to think how I am going to do with Siberian units. Apparently there were also armies near Petrograd and Odessa (guarding any German naval invasion and Romanian attack), which were then moved eventually. Maybe decision events where the Russians can get these extra units.
The Austro-Hungarian army is luckily much easier to decipher as the Austrian Official History is online and freely accessible, it also shows when each unit of the 2nd Army from Serbia arrives for example.