Put the rune of invisibilty and misfire on an organ gun and surprise your opponents best unit with five cannon barrels of death!!!!!!!
And get some cav through your allies, maybe even steal some wardancers depending on the size of your army.
I always played with 3000 points with allowed some variety. A few kick arse infantry units, crossbows and bluderbuses. A few Empire great cannons, not to mention a few flying monsters to keep things interesting.
But most importanly you gotta have Bugman's rangers, his got a magical beer mug and one of them is carrying a keg!!!
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I am disrespectful to Dirt! Can you not see that I am serious?