There is a difference between 1st Guards Army https://en.wikipedia.org/wiki/1st_Guard ... iet_Union) and 1st Guards Tank Army https://en.wikipedia.org/wiki/1st_Guards_Tank_Army.

About campaign scenarios. The first two scenarios (Lessons of war , Ending stalemates ) are for learning units. I don't know what connection it has to the 1st Guard Army. In the 3rd scenario(Born in flames), the connection is that after this battle, Guard units were created, but not 1st Guards Army ...

Tanks
7TPdw – 2 slots – in army - 24
7TPjw – 3 slots - in army – 109
7TP mod 1939 – 3 slots - in army – 2 (maybe some produced in september)
FT-17 - 2 slots – in army – 105
TKS – 2 slots – in army – over 500
TKS 20mm – 2 slots – in army – 24
Vickers-E – none in game – in army - 38
Renault R-35 ...