to start of with
1 hero choice (general)
2+ core choices
no special or rare unit choices
no magic item
no magic casters
the hero must remain the same from game to game, as he will get xp and improvements. the rest of your army can change from game to game, with in the normal restrictions of how many special/rare unit choices you have, and obviously with in 750 points.
that said, to start of with each player can choose 1 'warband upgrade' from the following list
1 additional hero choice
1 special unit choice
25 points worth of magic items for your general
your 1 hero choice can be a level 1 wizard.
these and more 'warband upgrades' can be obtained as the campaign is played out.
more explained later tonight.