Pravda Girls High School Tanks

Light Tank(s)
T-70 (only in the Ribbon Warrior manga)

Medium Tanks
T-34/76 obr 1943 (early)

T-34/85 obr 1944

Heavy Tanks
KV-2

IS-2 obr 44

KV-1 (mentioned in the movie and drama CD)

Other vehicles
 

RF-8-GAZ-98 Snowmobile

BA-64

ZiL 157 w/ BM-13 Katyusha

Zubr-class air-cushioned landing craft (Movie)