Mistakes when playing as Humans.

How will you break through the neutral forces into adjacent territories? With machines or something?

Of course.

Or will you spend money buying all sorts of weak units?

If the games are like in the last tournament, you can practically not worry about money. Otherwise, you'll have to be a little more frugal, but it's nothing.

And how many will she kill?

Vitya is probably the weakest machine operator, useful at the beginning, but completely useless in the final.

He has a bonus for the ballista, though. Even without the bonus, the ballista can effectively take down not-so-tough units in the final with a single shot.