... But they do have 350 tough bridging units (chuckle), since they have a land-fab or two that can't stop making them...
What the Russia AI was trying to build here, was transport units to supply their troops. Bridging units belong to the trasport class, and it just happened that one Bridging unit was the most advanced design the Russia AI had. You attacked in 2035, Russia has being at war since the first month of 2020. The 350 bridging units are the result of 15 years trying to build land supply transports.
I have reported this issue several times yet, in different threads, but BG considered it to not be an important issue. For me it is, they have wasted enormous amounts of resources and land fab slots to build this useless units. They keep paying their mantainance, what has surely help to put them in the bankrupcy you told about.
The last answer to this issue i got from Balthagor was "The following facts are debatable (Maybe AI should/should not do these".
Regarding the global situation you found in Russia it is easy to follow how it came to that status:
- 15 years of war, where tanks, infantry, Recs and antitanks have been killed in the front
- AA don't move, so 15 years AA build: your 597 units
- The ridiculous land fabrication capacity of the vanilla game, together with the build order (x% of each unit class), ensures that even the superpowers can not replace the in the front killed units. That is even worse in naval and air, where the only left units are those that don't move to the front: subs and transports in naval, chopters, bombers and awacs in airforce.
You will never face a challenge towards the AI with the vanilla SR 2020 settings if you don't attack in 2020 (or early years) or attack a country that hasn't been at war yet.
All countries that have been at war without pause are an easy pray, even if they are "superpowers". Even more, the longer you wait to do your attack. In 2035, after your build up, to conquer the world is just a question of the long game time it requires, but in no way difficult or a challenge.