We lost pretty hard, but the lists we faced were particularly cheesy and I can't say it was a terribly enjoyable game.
Chaos fielded a Knight, Plaguebearers, Cultists, Sorcerer, Herald and a Storm Raven. Ultramarines fielded 2 Venerable Dreads, 2 Predators, 2 Devastator squads and Guilliman. Dark Angels fielded a Crusader Landraider, some form of close combat troops with Chainswords, Azreal (in his Dark Shroud thing I think?) and 2 Flyers equipped with Lazcannons and Missiles.
My list was as follows:
They got first turn and the Knight was destroyed immediately and my Riptide was taken down to 4 Wounds, so was essentially crippled straight away. I think we may have been cheated out of it, as a troop unit grabbed the objective and then took it straight into the Landraider (which incidentally had a 4+ invun and -1 to hit it), which I didn't think you could do, but regardless we continued.
A squad of Cultists, Breachers & Crisis Suits managed to take down Guilliman for the first time, but he then came back up at 5 wounds. My Commander then managed to finish him off again after some more shots from Cultists and 2 Strike teams.
Honestly, once the objective was in the Landraider, we felt like we couldn't win as pretty much all of our heavy hitters were destroyed. Even my Crisis suits were killed immediately from the Predators, Dreads and Devastator squads. Shield Drones did their thing, but there's only so many shots they can take unfortunately.
The -1 to hit everything in the 6" bubble was horrible, hitting on 5's for most things pretty much killed my effectiveness, especially when you factor in a crippled Riptide. The Riptide did manage to take out a few Devastators, but only because it went down to 2 Wounds and they didn't pay much attention to it after that point. The Storm Raven and Sun Shark got killed in the second round as well, so they didn't even get a chance to effect much of the game.
Overall, it wasn't a great game in my opinion. Facing those levels of cheese wasn't particularly enjoyable and we felt like we'd already lost by the end of the second round. But hey, at least we killed Girlyman twice!