Bohemia Interactive's ArmA 3 has been looking good for a long while. This video demonstrates the aspects of the game that BI will be showing at E3, from general navigation to vehicle combat to underwater sequences.
We get to see a tank, but… not the grenade launcher. Sigh. Such a tease, Bohemia Interactive. Then, the demonstrator hops into a helicopter and actually fires some missiles before doing some artillery shelling. Hey, it's explosions! I'll take it.
We'll see more of the game next week at E3.