This game is magnificent in many ways but the best part about it is the lack of health bars. Sounds weird right? The reason for the lack of HP is a simple fact that all damage is physics-based. Shell type, velocity, weight, and caliber all have impacts on how it performs. Especially early in the game, most armor penetrations end in a one-shot kill and a glorious explosion. Paying will not give you any advantage either. Unlike some games (world of tanks) you can't pay for stuff like premium ammo or extended view range. The only stuff you can buy is premium vehicles and hats and other decorators. The premiums are typically prototypes or rare vehicles and are often inferior to their tech tree counterparts. There is a battle rating system so vehicles will always be facing vehicles of around equal combat power.