Hello !
A lot of things to say:
- Argel Tal & Zardu Layak & Herald = 1/3 of your army in HQ. Horus Heresy isn't Herohammer, take one big HQ maximum at 2000. What are your plans for Zardu ?
- 10 Gal Vorbak, take power fists and you can take double talons yes. No transport ?
- 10 Ashen Circle is too much, prefer five man squad that can be a pain in FeP. Don't forget they are only 1W 3+ Space Marine.
- Mhara Gal Dreadnought is not very synergic with Gal Vorbak army. Play it well or he will be your doom.
If your ennemy kills 10 GV, you can't win in objective scenario. You only have 26 models + 1 Dreadnought + 3 Land Speeder, and you cruelly lacks of firepower.
It's only my vision, I think it's a very Word Beareresque army, full of charisma, but on game, I've the idea that you will have little fun...