Talk:Hellstorm/@comment-220.255.2.126-20130315172919/@comment-25969041-20130319082005

And it is technically +40% because there is another 20% increase at level 10

"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