Duo mortis engines competitive or not?

[Hellion Nox]

With terrorgheists often being picked in the rare slot in most of the competitive lists these days I wonder why the mortis engines are so often overlooked.
Are they not as viable in a competitive setting?

And if you were to include the engines, what other unit options would you include?

 

[Asmodeus]

Lots of infantry. GG most probably as main unit.

 

[The Sun King]

I've won many games competitively with dual engines. You can check the thread "Sunny's Challenge" for different ideas. Normally I would run a horde of ghouls, 6 Vargs and 10 CH with a level 1 VL and level 4 MN with death.

 

[Hellion Nox]

Got to read a bit of the challenges sunny and it is a very interesting thread. How I've been able to overlook it is beyond me. I actually feel like providing you with my own challenge.

 

[The Sun King]

Please do, it has been some time