To use the computer in Fort Goks you first need to get the instruction manual from someone, John Sheppard in Vertammter platz will help you with that.
You'll have to destroy the missiles by entering a command somewhat like 'execute protocol41', it could be the right number but i just dont know that for sure anymore so you'll have to look for the manual yourself.
Once the missiles have been destroyed you'll have to fight the army and charge Qubba.
if you go to the caravan screen, and than to the main screen, you can see how much forage, fuel and water your caravan needs per day/ km,
so thats not really a calculator, but the calculating is left for you to do.
Haha, before you attack a caravan you should know that doing that makes you an enemy of the state, every police unit will attack you and they WILL destroy you.
I'm almost at the end of the game, and it is only now that i have to attack a caravan. I have hired every man or woman from every town and they're all driving a hummer.
The plan now is to take the government down...
 "Caravaneer"){kind=icon}