For anyone who hasn't tried the PC game, it's a free-to-play PvP tank extravaganza that pits teams of people against each other in quick but action-packed battles. While there are certainly allowances made for playability, Wargaming.net put some serious research into the game too, and you quickly learn to understand your tank's role in order to succeed.
That kind of strategy might be scaled down a little for Blitz, but it sounds like the core gameplay experience will stick as close to the original as possible. Players will be able to choose from U.S., Russian and German tanks to take into the game's seven-on-seven skirmishes, and the goal of each one should remain blissfully simple: destroy all opposing tanks or capture the other team's base. Screenshots that accompanied the initial announcement show off several different environments to rumble across.