Kalran: Tales of the four nations/Crusader

"Ready to unleash guns of hell!"

-A Crusader tank leaving the Armor Depot

Tactical analysis

 * Guns of the south: The Crusader is the heavy tank of Fortress Battalion, not only heavily armored but also capable of self-repair. Though its main cannon is rather average, save for a longer then average range, however...
 * Drop the hammer: It's railgun howitzer, which it must deploy, is not, capable of lobbing devastating high explosive shells at a steady rate, and from considerable range. This makes it the go-to choice for base razing or defending territory
 * Bring a bigger stick: Generally, a barrage of railgun-powered shells is enough to make short work of most targets. However, when even this isn't enough, Crusader crews can load and fire a "super shell", an explosive projectile packed with even more explosives than the Crusader's regular HE shells that leaves a crater that slows down any survivors
 * Slow and steady: However, such power comes at a price, besides the literal cost. The Crusader suffers from a very slow top speed, struggles against infantry, and minimum range for its howitzer, so it is best to escort it with other units

Ace upgrade
Crusader rounds now fire further and deals in an aoe, slowing vehicles and stunning infantry around it, and gains a HMG turret, which can only fire when stationary.

Trivia

 * It is based off the siege tank from starcraft