Thanks for your input, I just have a couple follow-up answers and questions.
I never really thought about daemonic aura, so thanks for mentioning it. As for a power weapon, isn't that the same as a power fist? And I thought the combi-melta was a pistol? And I did not give my lord a dark blade because I thought the power fist was a close combat weapon, and I thought you could only have one for some reason.
Why can't berzerkers buy "feel no pain"?
As for the troops, I thought the flamer would be good for dealing with mobs of oncoming troops, like a swarm of tyranids. And I have the lascannon for tanks and such. There are 10 marines in each of the two squads, 8 berzerkers, and 3 bikers. As for the number of heavy support versus troops, I was debating whether to get rid of the dreadnought and add more troops, but I am not sure which would be better.