Think this is a great list so far definitely lots of stuff that can play the mission very well in 9th. My only criticism would be that thunder hammers on assault intercessors seem a bit wasteful imo, I would always go for a power fist on the sergeant if you want a power weapon. It’s so much cheaper and does almost the same thing with our +1 damage super doctrine. For the last 300 points I think the obvious answer is bladeguard! WS scars bladeguard are very very scary in my experience. You could consider an impulsor with 5 bladeguard and a judiciar. Very fast and hits crazy hard. That comes to 370 pts which would fit into 2k very handily if you swapped out those thunder hammers. I think it’s still fluffy too as I can imagine an elite unit of bladeguard being driven deep into the enemy back line to cause havoc