russian-tanks.com This site may interest some.

[StainlessSteelCynic]

The site deals mostly with Soviet armoured vehicles & doctrine of the WW2 period with some articles also devoted to German vehicles and a small section on US support vehicles
I was thinking specifically of Raellus because of these pages
http://russian-tanks.com/deep-battle1.php
http://russian-tanks.com/soviet-doctrine.php
but others here might find the site worth a read.

http://russian-tanks.com/ specifically the Category Of Tanks page because even though it mainly focuses on Soviet vehicles of WW2, there is a section on post-war US vehicle developments (primarily devoted to APCs and other support vehicles).

[Draq]

I'm surprised t2k didn't include the soviet object 279 super heavy joint-nuclear battle tank.

[StainlessSteelCynic]

I doubt many people in the Western military in the 1980s knew about that particular project let alone the people making T2k.
Reliable info on it really only became available to the West during the 2000s.
I have a book about the Kubinka armoured vehicle collection that was published in the mid-1990s. The guy who took the photos got some very vague info on the tank but nothing good enough to produce game stats with and even then, the book came out about a year or two after the latest version of T2k had already been published.