Famous for the powerful damage it can deal, the Hammer is the perfect weapon for maps that have plenty of close range combat encounters. Due to its efficiency at close range - the closer, the better, most Hammer-using players tend to box their enemies in before firing.
This is mainly because the turret has a pretty long reload time. So, if you play as a Hammer tank, you'll need to make sure every shell you fire from the muzzle of your turret counts!
Of course, since most of the time you'll be getting up close and personal with your enemies, you'll need to make sure that your Hammer tank can take a few blows or have enough maneuverability to "dodge" a bullet, so to speak. Thus, a medium hull is usually recommended since it provides a nice balance of both durability and maneuverability. You can also get a heavy hull if you like, but it's not recommended to match a light hull with this turret.
Despite being the best close range turret in Tanki X, if necessary, the Hammer is also able to deal damage right up to around medium range. Naturally, the further the enemy tank is from you, the less damage it will suffer.