Actually, no.
2 cannons, 2 Helstorms, 1 30 man spear unit, 1 30 man swords unit, 2 10 man handgun dets, 1 det xbows, a unit of 11 IC knights, 2WP's and an AL on WA.
His army : A monted Chaos lord with 10 knights, 2 marauder horsemen units, 2-3 units of hounds, a spawn, a Hellcannon and a 20 man warrior unit including a sorcerer.
Also, the most important observation I made was the fact that the shooting sequence is so different. You can now fire with a warmachine/unit and evaluate the result before aiming the next one