Posted on the Relic forums by a user who played the game on Gamescon:
The russian rifle squad has 6 men, the russian engineer squad 4 men
Every infantry unit can become the crew of a tank (in this example 3 soldiers of a russian rifle squad recrewed a t34)
Gridkeys is included
A reverse-button is included
Different units have different view ranges, view cones and units cant see that well whats going on behind them.
Commander-system (probably) revealed:
You can build commanders as individual units that have special abilities (the russian commander in this example has: an artillery barrage, an IL2 sturmovik airstrike, a katyusha strike). Those special abilities become unlocked at certain veterancy levels.
More details on the ressource system: Sectors exist but provide manpower. To gain access to fuel or munition you have to build fuel/ammo-depots with your engineers anywhere on the map. When you built those depots behind enemy lines you gain more ressources because you additionally steal ressources from your opponents.
Lend & Lease is represented: Russians borrow US Halftracks.
Russian light tank crews and russian snipers are female.
The russian sniper team consists of two women, they cant cloak and move at the same time but cloak automatically when being in green/yellow cover.
Another thing i forgot to mention:
Tank crews can open the tank hatch and look outside to get better line of sight (LoS of tanks is very limited), however: This exposes them to small arms fire.
I'm getting seriously pumped about this game now.