Operation idea: Obliteration
Had a pitch I feel like would be awesome to play through. I split it into some viable main beats I think would be interesting, kind of a homage to SM1 where you use a titan to obliterate the spire on Graia.
Your squad lands on Demerium to stop a reported chaos wave amassing to regroup a foothold on the planet and search for Aurora remnants.
Upon reaching an abandoned imperial guard vantage point to assess the size and threat of chaos forces. The chaos force is larger than expected and you are detected and have to hold off a horde similar to the midpoint and end of the Disruption op, slowly locking down the area via a large crypt gate and blocking your comms to report the incursion.
Having no way to report the immediate threat the chaos reinforcement poses, you are aware that there is no available ordanance to combat such a foe, suddenly a tech priest intercepts your comms and claims you may be able to briefly reactivate a nearby defunct titans plasma annihilator from a nearby mechanicus site.
After reaching the site, your squad find multiple batteries similar to those in Fall of Atreus op that need recharging and linking to the titan. Whilst fighting off chaos incursions, players guide the batteries to specific ports for each induvidual battery and commence a massive charge to the weapons plasma reactors.
Once the charge reaches a certain level, your squad reaches a comms station and links the titans weapons over to the mechanicus and are ordered to evacuate the site should the plasma become unstable. You lockdown the site and fend off chaos forces trying to stop your escape. Once your squad clears the area and reach a viable landing zone, the titan briefly reawakens, its plasma anihilator firing a massive destructive beam into the chaos foothold, obliterating everything in its path.