RayJ

I think they're ok. They're a good deterrent vs elite squads getting in close. But you need plenty of other armor or they'll get singled out.

I'm going to second that in most games, standard Plasma Incinerators are going to do more work. I've been testing 2 max size squads, just to test the extreme, and they are performing exceptionally well. Inside 15 inches, splitting fire erases multiple units. I usually only overcharge 1-2 times per game, but I am typically using WOTDA every turn. Get to the middle of the table, control the board, and make the opponent cry.

You should add Mortis Dreadnoughts under Heavy Support. Cheaper and less durable than the predator, but no penalties for taking damage make it a solid choice for lascannons (or autocannons). I have not been disappointed with mine in any games so far. Honorable mentions should probably be Ravenwing Apothecary and Librarians of any flavor. They are more situational, but certain list builds or local metas could make them important and powerful. I agree that Stormravens are a bit high on the cost now. In almost all cases I think 3 Razorbacks beats out a single Storm Raven for similar weapons and field coverage.

If you want to deep strike them you want JP, otherwise bike.

I'm pretty sure our opinion on them is based on statements by game designers that they are great assault units. Expense compared to damage output and survivability is very lacking. Without some sort of special buff, their best purpose is to just shut off enemy shooting and help with board control. Unfortunately, their stats make them ineffective at it compared to units that can kill things at range for the same points (also turning off enemy shooting). I keep looking at BA special rules and seeing some effective combinations for them, but we don't have much that can do the same. Especially for the same price.

I've used the Deathwing Assault strategem a few times on a unit with 10 storm bolters and 2 cyclones. I think it's definitely an opponent dependent thing. I've had just as many games where it did well as not, but the CP investment is huge. In all games where I did this, Belial was supporting the squad by jumping first (sometimes and hiding out of LOS to prevent strategems fom allowing opponents to gun him down.

Melta/Combi-melta is still good, though they are best in pods. You can advance and still shoot them, so range isn't always an issue. Also, don't go out of your way for the extra dice roll for damage. Missiles make good heavy options for versatility and for flakk missile strategem. I do really like grav cannons on tacs though.

I put in a question to the official FB page about the missing entry, and they pointed me to the FAQ/rules email address. We'll see what becomes of it.

I will second the use of Mortis Dreadnoughts for Lascannons. I've been running 2 in almost every game. Super good.

I just misremembered the power as working in both phases. Too many mind-wipes.

He's listed on the elites table, but I must be blind, because I don't see him in the unit entries. And no, I don't mean Company Champion.

in my second game, I used DWA to clear a screening unit (and damage a tank), and then killed the enemy warlord in shooting with half the squad's bolter fire in the shooting phase. Opening up to smite is fine too. Just remember to drop Belial first for your rerolls :)

Having used it in 2 games, I can say Deathwing Assault feels overcosted, but it's still good in the right situation. FerociousBeast is right that the unit should be focused on shooting. I ran a 10-man squad with 2 cyclones. It didn't do much in the first game due to poor targeting decisions on my part. I did a lot in the second game, but I likely could have had better use out of those CP in my other squads. I want to try it with cataphractii terminators still. I'll save points on the missiles at least, so there's stuff to toy around with.

A librarian casting righteous repugnance on the Black Knights can replace Sammael and a Talonmaster most of the time, for much less points.