1500pts vs Beasts of Chaos

Super busy day at the local university games club, but Gerald and I managed to clear a table for a game.

The Dwarven Forces:

20 Warriors w/ Thane BSB (Ro slowness + Ro Guarding) + Runesmith (shield, MRo Balance)
20 Longbeards w/ Thane General (w/ shield, Ro Fury, Ro Stone)
10 Thunderers
10 Thunderers
Cannon
Grudge Thrower w/ Ro Accuracy
Organ Gun

The Beasts of Chaos Forces:

25 beast herd w/ 3 bray shamans, 2x Lore Death, Lore of Slaanesh
12 chariots (1x Mark of Tzeentch, 1x Mark of Slaanesh)

Crazy list. Basically relies on the luck of the impact hits, with some strong magic. I basically had to let him get off a spell each turn, and sometimes I'd fail to dispell the ones I tried to stop. He used his magic to try to kill my war machines, mostly, and he had 2d6 s4 hits on both of his death shamans, and d6 s6 hits on his slannesh shaman, so lots of misiles coming their way.

My GT and cannon each crush a chariot in their turn, and the thunderers killed another, while the organ gun shot the beast herd. Everything advanced on the beast turn. I basically did the exact same shooting in the second turn, thunderers now in short range, and the organ gun caused his herd to panic.

He charged one chariot into 2 ranks of thunderers on the hill, and 2 chariots into my warriors, and moved to set up a triple chariot charge into my Longbeards,  after rallying his beast herd. His magic finished off my cannon. Low impact hits all around and the dwarf toughness and static combat res allowed me to marginally win both of the chariot charges and one of the pair fighting the warriors fled. My organ gun took out the rest of the beast herd, leaving 3 characters standing in the open.

He rallied his chariots, advanced with his characters, and triple-charged my Longbeards. Statistically expected result is me making 4-up break test and losing 12 guys... actual result was that the Dwarves won the combat by 1, losing only 4 dwarfs and doing 2 wounds in return. He concedes the game that point but we play it to the finish. The other chariots lose combat and break, my Runesmith charges out of my warriors to destroy a bray shaman, and my thunderers kill another shaman and wound the Bray-Shaman General with chaos armor. Final turn sees a lot of fleeing chariots, some rally, his general charges my Runesmith and the Runesmith finishes him off.

Massacre for the Dwarves! Some bad luck on the beast side, higher impact hits and they would have come out with the massacre. They really should have won and broken me with at least one of the charges, and any one broken unit would mean chariots on all sides of the dwarfs. The panicked beast herd could have been prevented with a 20pt unit champion for +1 ld (up to 7 from 6)... my organ gun is of course especially effective against those guys.