With four of us there wanting to get games in, we decided to do a 2v2. Since we had brought 1750 lists, we just went with that. We rolled off for teams, and it ended up Daemons and IG vs Daemons and Nids. We rolled up Vangaurd deployment, and decided to do both Relic and Scouring. IG/daemons had first turn, and cast powers and started raining death down. Focused fire and high strength shots took down one of our DP first turn.
Vs my daemon ally, our daemon opponent was rolling hot, but when it game to me, his dice abandoned him. I grounded the first prince with my first salvo, and even with FNP and other stacks, firing 4 large gaunt squads whittled him down (after being enfeebled of course). I managed to ground the other Prince, so my ally daemons could assault him, putting some wounds on him.
The following turn, Hounds killed gaunts, and gaunts killed hounds, locking them in combat till Tervigons joined in to grind through. I had prepped 40+ gaunts to assault a Lord of change, but after enfeebling, he died to the grounding test (S9). My ally daemon's lost another prince to the vendetta, but was able to take it down the following turn with shooting in the back.
I mostly ignored the IG the first two turns, the russes put a few wounds spread out on my big guys, while also killing some gaunts (allowing me to spawn more as I had ran out). Daemons were able to take down some of the tanks, Leaving a more manageable amount for my tyrants to mop up.
By the bottom of 4 we called it, my ymgarl were about to show up and assault their back forces, There were only a few daemon squads left from either side, and I was sitting on the 4, 2, and 1, Contesting all of theirs, and grabbing the relic. With nothing by gaunts dead, Tyranids claimed the biomass that game. With the help of some good enfeebles, and Daemon bullet shields, the game was won. Rolling up warpstorm during both shooting phases really slows down the game though.
Overall I still struggle against some daemon lists, and can easily handle others. The fact that most of their good units have +3 to their stats compared to Nids, and cost 100 points cheaper just really breaks it. With their new powers, it is harder to keep screens alive to protect the big guys. We have to rely more on our short range volume of fire and some lucky powers to pull out the battle.