When firing from cover, the Flak Tank's shots does not leave a tracer which would give away it's position to an attacker.
When Attacking a Flak Tank with Air Units it is wise to spread them out so the attack in the Half Circle Formation ( see Pic in the Gallery ). This will limit the number of Aircraft sustaining damage for the Flak Tank.
'Flak' is an acronym of the German words 'Flugzeug Abwehr Kanone' which means Anti-Aircraft Cannon.
The Flak Tank closely resembles the Soviet ZSU-23/4 SPAAG, with one notable difference being a narrower turret.
Exactly the Flak Tank is capable to attack the ground unit (aircraft instead) as seen in Facebook game Red Crucible 2.
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Flak Tanks exist for one purpose: the total annihilation of enemy aircraft. They fire explosive clouds of shrapnel that chew through clusters of enemy air units. Flak Tanks get a 20% range increase against aircraft.
— Event Shop Description
Refit with specialized armor designed to reduce damage from enemy aircraft the Flak Tank can pepper aircraft with reckless abandon. Flak Tanks get a 20% range increase against aircraft.
— In-Game Description
This Flak Tank is capable of bringing down any plane in the sky!