Utilizing tall grass is the best way to get the jump on your enemies, you are completely invisible! Ranked battle T-coins, can be spent on chests which contain blueprints for new tanks and gems and coins. Note: the more chests you buy in one day, the better chance you have of drawing a rare chest. Rank up for milestone rewards, You can get specific tank blue prints from the milestones. When a tank goes up in rank, you will earn some gems. Play a match with a full team, add friends so you get some extra T-coins!