But in the meantime I've come up with a new 2k list, which is quite a bit different. No stormravens, no termies, no dreads at all! Just lots of long-range and medium range shooting.
HQ: Captain, jump pack, dual lightning claws, meltabombs
Troops: 10 Assault Marines, 2x melta, fist
Troops (x3): 5 Assault Marines, power weapon, metla; Razorback, searchlight, Las-Plas
Elite: 2 Sanguinary High Priests, one with jump pack, both with power weapons
Fast (x2): Baal; Heavy bolters
Fast: 2 Attack Bikes, MM
Heavy: Predator; LC sponsoons, searchlight
Heavy: Devastators; 4x ML
This provides me a nice firebase with 3 lascannons, 1 predator and 4 ML all under shield and FNP. FNP devastators are actually quite hard to dislodge from cover, especially if the roll for red thirst. They stand up to Venoms quite nicely. The Baals are serious anti-infantry firepower, and take the place of Blood Talon dreads. The jump pack squad can come in almost anywhere with DoA with 12 FNP Marines and cause a whole lot of trouble or at least cause all guns to turn around away from my firebase.
I think it is a lot more effective then the dual flyer list. I will be playtesting a lot over the next 2 months. We'll see..