All the stuff the game should support, player wise.

General
- Join the game.
- Leave the game.
- Select which server to play on.
- See messages from the server.
- See the settings of the server.
- See who are playing, and on what team.
- View a map of the battlefield.
? See all friendly units on the map.
? See reported enemies on the map.
The own tank

- Drive the tank forward and backward, turn it left and right.
- Fire the main gun. (And ultimately hit and destroy opponents.)
- Rotate the turret.
- Elevate the gun.
? Let the commander stick his head out the hatch with binoculars to see 
better.
? Change view between gunner and driver.
? Request artillery strike/air support.
? Fire different types of ammo, HE, Smoke, AP.
? Report spotted enemies

To other tanks in the platoon

- Give orders.
	- What formation to take.
	- Follow me.
	- Fire at will.
	- Cease fire.
	- Report in.
? See their positions on a map.

Other tanks on the same team
? See their positions on a map.

Other players on the same team
- Send/receive plain text messages.
- Send/receive predefined commands/orders. 


Other players
- Send/receive plain text messages.

Other tanks
- See them if within visual range.
- Distinguish between friends or foes.