This will be my first WWII Russian vehicle that I have finished building and now I would like to paint it in the colors that it was in during the Battle of Berlin. Can anyone please tell me what the color or colors of this vehicle was and what unit it was attached to? Also who makes the most accurate colors for WWII Russian armor?

Very simple, Russian Green. Many of the vehicles involved in the battles of 1945 also carried white stripes on the superstructure/turret. These were (often) simply whitewashed and were pretty clumsily done.

Regarding suitable paint, as I use acrylics, my personal favorite is the Vallejo Model-Air Russian Green. That said, almost any variation on a dark (and pretty weathered) green will be more than acceptable...

I used Humbrol 150 Forest Green as a base and filtered with a darker green for my T-34!