Quad Tank

The  is an upgraded form of Twin and Flank Guard, and previously the Triple Shot; It can be upgraded further to the Octo Tank or Auto 5.

Design
The Quad Tank has a circular base surrounded by four Barrels in a plus shape, designed with no recoil, to be a stationary turret. However, if it did have recoil, it would be canceled out because of the position of its Barrels.

Technical
Since it has two pairs of opposite Barrels, the Quad Tank does not have any recoil. Individual Bullets fired from this tank deal a lower amount of base damage than the Tank, but they shoot in four directions.

Strategy

 * Strong Against: Multiple low-Level enemies.
 * Weak Against: Focused fire, high rate of fire tanks.

As the Quad Tank

 * Quad Tanks are decent at dealing with crowds of Polygons and great at dealing with many lower-Leveled tanks. Farming and multi-kills have never been simpler. As you have four Barrels, you can get two or more into range of your Barrels and spam Bullets.
 * Beware of Boosters, Tri-Angles, Smashers and Landmines as they can bump into your weak points and kill you quickly. To counter, it is best to have high Reload, Bullet Speed, and Bullet Damage and block your weak spots.
 * It may be better to stay as a Twin until you are able to upgrade to an Octo Tank just like with the Triple Shot.
 * Like the Octo Tank, you can spin to defend yourself and block weak points. This is helpful against ramming builds, like the Booster, Tri-Angle, Destroyer and Fighter.
 * This tank is weak against most tanks with focused fire, like the Twin and Triple Shot, not to mention the Sniper. It is one of the tanks with the most weak points, so do your best to protect yourself, as you have four weak points where players can damage you from.

Against the Quad Tank

 * The Sniper tree (excluding the Trapper and Overseer branch) are hard counters to the Quad Tank. They can easily pick it off due to the slow speed the Quad Tank has and its 4 gaps between its Barrels. This allows for an easy kill in all diagonal directions.
 * Body Damage builds can also take advantage of the large gaps by ramming them. Try to leave your movement unpredicted by moving left and right to try and take minimal damage.

History

 * It used to be a Level 45 tank when there were still Level 60 tanks in the game.
 * It was one of the first tanks in the game.