IENT Current Revenue Streams:

IENT generates revenues from sponsor contracts for their product placement in the Outdoor Game Universe and from micro-transaction purchases by players. Players can buy upgrades to their guns or bows, purchase bullets and arrows for online competitions, and purchase additional items like camouflaged clothing, sights for their weapons, hats, quivers, stabilizers, and over 300 different items upon initial release.

IENT current revenue products, WarBirds 2013 and M4 Tank Brigade, have been recently updated including two new terrains, Korea (Jet Arena) and Japan. New Mac versions of these products have also been recently released for online revenues.

Oh and there's the patent..