The Hydra Flak Tank, also known simply as the Hydra, is the main mobile anti-air artillery piece of the Astra Militarum. It is produced on hundreds of Forge Worlds across the Imperium and is widely-used in nearly every regiment. The Hydra, like many other Imperial military vehicles, is based on the Chimera armoured personnel carrier chassis, and is armed with a set of twin-linked Hydra Autocannons. Hydra Autocannons are a set of long-barrelled Autocannons mounted on a turret with highly sophisticated tracking and targeting equipment.
![Hydra Flak Tank](https://i0.wp.com/ifelix.net/wp-content/uploads/2019/12/IMG_0221.jpg?resize=840%2C560&ssl=1)
The Hydra’s main role is defending mobile Imperial Guard attacks from the unwanted attentions of enemy aircraft. Even in the abscence of airborne threats, the Hydra’s long barrelled auto-cannons are still a potent weapon against lighter vehicles and infantry.