New Chaos List Vs. Blood Angels

Alright, yesterday I played my Chaos army at the Store I go too, I did well in the first game, boarding an Ork player with my Slaneesh units and Thousand Sons. The next game I fought our resident Blood Angels player, that runs Mephiston in a 1000 point army. We fought in a city scape, and he hid his Devastator(with Sigmun) and Vindicator behind Ruins and blasted my army apart as Mephiston butchered my Thousand Son, I gave up after the third turn after losing all but three of my noise marines.

I also watched my friend who also plays Chaos get mauled by an Ork army who managed to overrun his power armor saves with mass numbers.

I realized that I had nothing to deal with Mephiston and his 2+ save, and his I7 made him faster than any of my units in my list or army for that matter. I had even less to deal with the Vindicator(Which hid behind the ruins the whole game). And that I had much less to deal with a Horde army like the one my friend faced(88 models worth of ork in a 1000 point game).

I'm a fan of Alpha Legion, so I tried to make this army even more mobile(I dropped my Raptors in favor of Chosen), and I added in a LC and Predator to help me in my tank hunting.

HQ-Huron Blackheart-170
(He might be popped out for a Lash Sorcerer, but I have a personal hate of Lash)

Elites-Chosen-180 (Five Models)
2 Flamers, 3 Meltas
Rhino-EA

Troops-CSM-265 (Ten Models)
1 Meltagun, 1 Lascannon, 1 Icon Chaos Glory
Champion, Power fist
Rhino

Troops-Khorne Berzerker-279 (Nine Models)
Skull Champion- Power Fist
Rhino-EA

Heavy Support-Predator-105
HB Sponsons, Twin Linked Bolter

Total-999

I'd like to know what you guys think that could help me improve upon this list, This will be my first time running Zerkers, so any tips on them would also be appreciated.