This topic is more complicated, as Assets/Content need time and resources, so I can understand if these will not be considered, but no harm in placing them here anyhow, especially as their additions could see Reforger then being "Content complete"
FIA:
1. Some randomization in headgear and clothes, to make them a bit more ragtag
2. some new assets like balaclavas/face covers
3. T-55?
4. Kozlice Shotgun
Soviets:
1. Mi-24 Hind
2. T-72
3. BMP-2
US/NATO:
1. AH-64 Apache
2. M1 Abrams
3. Bradley Fighting Vehicle
4. AAV-7A1 Amphibious Vehicle
Civilian:
1. A sort of longcoat for use in those cold winter months (maybe even longcoats for Officers of the Soviets and NATO)