He set up first and I deployed my two farseers, dragons and dire avengers inside their respective serpents and largely huddled everything into a corner in case I didn't get first turn. I paid a CP for the guardians to set up in the webway, with my scorpions and war walkers with their own special reserve rules.
The mission was pitched battle or something, I just set out to kill everything.
Turn 1
I got first turn despite his +1 to take first turn which was great for me. I drove everything forward and shot up his wolves as I felt I needed to neuter his charges as much as possible. I used the spears as a screen for one wave serpent between some terrain after flying up and using fire and fade to retreat 7 inches. The reapers ate some of the long fangs with the spiritseer beside them and the spiritseer protected one wave serpent. I flew one serpent out to the side with a 5 man squad of avengers to see if my opponent would direct some wolves that way.
He did, which split his force in two and away from the 12" autopass morale bubble. He took some wounds off my serpents across the board and assaulted the isolated serpent and my spears which shielded my other serpent. Isolated serpent bit the dust and killed two of my avengers inside. My spears were wiped too and he consolidated towards my serpent.

Turn 2
The guardians came forth from the webway on the same flank as my war walkers, behind his advancing line of doggies, bikes and warlord. The scorpions jumped from their hiding spot to aid the 3 remaining avengers who were tying up 15 dogs and a lord. My other avengers disembarked with the farseers and the dragons did the same. The two serpents backed up a bit and the reapers moved up to get a target on his warlord. I fortuned a serpent closest to the long fangs, doomed and jinxed his warlord, failed executioner and mind war on different targets even with rerolls.
I obliterated the majority of his wolves in this turn with the pincer move of the walkers and the guardians on one side and the avengers on the other. The dragons killed off his bikes and attack bike and I proceeded to murder his warlord with the dark reapers. The scorpions charged and whiffed/didn't do anything worth their points other than kill half a dozen doggies.
His turn two involved charging his remaining wolves into the dire avengers, failing a charge with one squad and making it in with the other. Didn't get very far with them as they died to overwatch and killed two avengers. The rest died to morale on that side. The other lord and his dogs wiped the avengers and the scorpions but they were far away from my main force and were out of the game.

Turn 3
I rearranged my army into good positions and shot the wolves that were left, wiping the squad and putting the lord to one wound. I killed a long fang squad and killed another to a man and that was pretty much my turn.
My opponent called it there, seeing as I was in a much stronger position by the end of my T3.

Overview
Probably a really good match-up on my side, my weight of shots didn't care about the autopass morale bubble and any combat he got wasn't enough to put a dent in my army by the time he got there. I feel like the list I brought doesn't care about first turn due to the low model count on the board at the start of the game and the ability to strike in a pincer move with the guardians, walkers and the potential support of the scorpions.
The scorpions were disappointing and I don't think I'll be taking them again. Maybe it was a mismatch in terms of opponent, wolves aren't infantry so the mandiblasters couldn't deal out any mortal wounds. The 25% chance of a charge is also horrible so I guess they'd need their own transport to get them into combat. I still like them a lot though.