Ok, I was reading about this game. There isn't a lot of information, but I could conclude some aspects.
Take it easy [MENTION=2433]FlyingR[/MENTION], won't be Nazi Zombies in this game
. I asume you will be a citizen, maybe a partisan or something like that, or maybe a simple citizen, and you can do what you want. Simple exploration, or maybe combat the Nazis, or maybe combat the Allies too !!! I'll quote:
"Our Ghosts of War can played both as an individual game, like DayZ, where you have to survive for yourself and kill opponents to salvage materials needed to survive, and more like a team effort where you can form up squads with your friends. A big part of what we're doing with Our Ghosts of War is making the game highly customizable so that players can experience The Second Great War however they like. If they want to play as a random psychopath running up and down the beaches of Omaha and the wine farms of Normandy gunning down both Allied and German troops, they can. If players want to group up with their friends and make a squad, that'll be possible as well and gameplay systems will shift to incorporate that such as squad based resource sharing, among other things."
It is a very weird concept. I assume that you can't play as a soldier (doesn't matter the faction), because you will loose your "freedom", and I imagine the possibility that groups fighting each other.
I don't know if the game will be realistic and accurate, I have my doubts, but it is a really interesting project