[quote=@Dulcet]
I would love to be the gunner behind letting futuristic hellfire loose.

What positions are open in the tank? Are they the same as the modern positions? 
[/quote]

There are three positions: commander (me, giving out instructions and forwarding the plot), gunner, and driver. Because it's a tank eight-hundred years in the future, think of a modern tank like an Abrams of Leopard 2 and multiply it by a thousand and one, because that's how powerful it is.