That core list looks real nasty to face with that selection of nids... You've got to worry a little about the doom, but i suspect he wont be drop-pod-ing it so thats most of the danger gone (needs to survive a couple of turns of fire to be useful then).
Throw S8+ stuff at the warriors (krak missiles) and they'll melt - same with the doom.
Mech/stay in cover for the rest, and even being charged by genestealers wont seem so bad. Just be aware that he can cover a lot of ground with most of the assault broods. A dreadnought at this point level will only really be hurt by the tyrant, so it can happily wade into hormagaunts/etc.
Throw S8+ stuff at the warriors (krak missiles) and they'll melt - same with the doom.
Mech/stay in cover for the rest, and even being charged by genestealers wont seem so bad. Just be aware that he can cover a lot of ground with most of the assault broods. A dreadnought at this point level will only really be hurt by the tyrant, so it can happily wade into hormagaunts/etc.