Flak

Main use
The Flak is a strong defensive weapon unlocked by the Armoury. After a set amount of time the shell bursts into multiple shells which can shoot down missiles/rockets along with mortars.

You can also use them to support your teammates, since they are better at AA then machine gunners.

Other uses
These shells can also deal damage to any wood it comes in contact with. This can be a good offensive weapon if it wasn't for the fact that it isn't very accurate and more expensive then other early game weapons.

The Flak can also be used to destroy gunners or mortars behind cover.

Trivia
 * The Flak appears to be based on the "Flak 20mm MG quadruple"