A second phase of closed beta testing for Tank Ace is now underway, offering another crack at GamesCampus' upcoming World War II MMO tank game. A variety of events and giveaways are part of the beta, and here's an explanation of what has changes since their first test: "Chocked full of new content for the second closed beta test, Tank Ace will feature a new challenge mode, new quests and updated bases. Completely overhauled with all-new graphics and textures, the game will also feature a new windowed mode." Though they are calling this a closed beta, it is actually more widespread than many open betas, as word is that anyone with a free GamesCampus account can join.