Stuck at Verona...

[basis]

my current map of verona, and yes I did beat the fight to Montero but loss a few units there.


and the other maps I have.


and here's my current 'army' which I do have space for more because my leadership grew while I was off exploring Montero.


well i welcome any further suggestions that'll help me learn new ways to defeat the challenges in this game. I get all cautious when I start seeing all the mobs with the words 'Lethal' and above.