Warship Co-op mission

Without needing to create entirely new assets and new planets can we get a co-op mission on one of the warships? 

Here's my idea:

One of the warships over Avarax gets boarded by the Tyranids. Your squad and 2 Bladeguards are sent to help repel the invaders. You and the Bladeguards fight your way through the corridors until you come across a sealed room. Inside you find a navigator and some surviving (non-astartes) crew. The bladeguards decide to stay behind to protect the crew in case any tyranids come back this way. You and your squad continue pushing forward (perhaps have some Ultramarines fending off tyranids in other ship sectors). Eventually you come across the Neurothorpe leading the Tyranids, you boss fight the fuck out of that bad boy and put it down, allowing the Ultramarines to retake the ship.

Personally I really like the Kadaku atmosphere but I'd like to see more environments. This balances that need while allowing some assets to be recycled. Thanks for your time.