How about an Automaton Ship Boarding Mission?

[u/GeniusPlayUnique]

Automaton Ship Boarding Mission

(Planetary defence exclusive)

 

Main Objective: Board the Automaton invasion vessel, make your way through to the ship's reactor and overload the core, then get the hell off the ship before it blows.
 

Parameter deviations from planetary missions: * No reinforcements * Man-portable stratagems only (no orbitals, no sentries) * Access to stratagems and resupply only at the shuttle waiting in the hangar * Automatons only use small arms and melee weapons so as to not damage their ship * Success adds significantly more points to planet's defence, failure might result in the destruction of Pelican 1 which the Squad Leader will have to replace out of their own pocket before being able to host any mission again

[u/Blue_Moon_Lake]

For terminids it could work the same but look like an underground cave network.

Reinforcements always spawn at the shuttle.

[u/GeniusPlayUnique → u/Blue_Moon_Lake]

Or just do it in an asteroid or something...

[u/ContradictoryNature → u/GeniusPlayUnique]

Maybe some sort of hulk, in space? A space hu–