There are two releases from Forgeworld this morning for your armies. Once comes from above while the other from below.
https://www.forgeworld.co.uk/en-US/Forge-World-New
Mechanicum Ordinatus Aktaeus
$500
Undermine your enemies and tunnel to the heart of the battlefield.
Attack from the Ordinatus platform, or assault your foes with the Aktaeus Earth-breaker.
Devastate enemies with a hail of firepower or seismic waves.
Legion Dreadnought Drop Pod
$101
Bring a Dreadnought onto the battlefield in a new way
A versatile model with moving parts
Can be used by any Space Marine Legion army