Thank you guys for the responses!
Close combat is not out the window, but my view is that they would be a suicide unit and I don't like suicide units
. While scarabs and wraiths could potentially do the job, they'd be charging up against the enemy's gun line and would most likely get shot down before they make it.
By artillery I meant tanks, like a basilisk or colossus. Yes, indirect fire. Imagine a tank hiding right behind a wall that is very hard to see unless you are basically looking sideways at it or close to that. It is right at the back of the field, so it's impossible to deep strike behind it. I know these things can be a huge threat to my immortals if left unchecked, which is why I think I should prioritize them.
I've got to check out those space wolf scouts...that sounds awesome!
I like the command barge idea. I am unsure of how to run my overlord, and that actually seems like it could work (and could be cool).
Out of the two fliers, I'd probably choose the death scythe over the night scythe. Ya, I could drop 15 warriors down to take out the tank, but those warriors will die so fast. It's just me, but I'd rather not do suicide tactics
. That being said, a large 20-man squad with a veil could potentially do it at the 24 inch range and stay out of trouble if I get a good scatter roll.
I now have more to think about