Primarily to perform missions that require great mobility and firepower. It is capable of engaging in all forms of combat.

The M4 Sherman, aka Medium Tank or M4, was the most widely used medium tank by the Green army and Allies during the Great War and still used today.

The M4 proved to be reliable, relatively cheap to produce, and available in great numbers.

Over the years there have been many versions, from updates to customizations. It was also the basis of several other armored fighting vehicles including self-propelled artillery, tank destroyers, and armored recovery vehicles. Tens of thousands were distributed through the Lend-Lease program to the Blue and Red armies.

One of the latest versions is the customization designed by Bull, with a double barrel.

Sources for this article:

https://en.wikipedia.org/wiki/M4_Sherman