That’s quite a gun you’ve got there
Battlefront features the Firefly IC for Flames of War in this latest article.
From the article:
The Firefly was arguably the best variant of the Sherman to see service during the Second World War. Armed with the legendary 17 pdr gun, it gave the British and Commonwealth tankers the ability to knock-out even the most formidable tanks available to the Wehrmacht such as the Tiger or Panther.