All of my missions are inspired by hooks I see in the canon and explore.
The three I have live now won awards back in the day:
Rularularian - 41-54 - ID: 848 - Takes place in the Shadow Shard and starts in Mole Point Charlie. It explores how all those regular civilians in The Shard, that the Fire Base Zulu patrols have found, and that keep talking about looking forward to seeing Paragon City as if they have never seen it, got there. Gives you Lt. Flynn, Sarah Moore, lots of aspects of Rularuu lore, reflections and those lighting cloud things (forget their names) too.
The Serpent Beyond the Horizon - 46-52 - ID: 854 - Explore the origin of the Serpents of Mercy island, plus other other lore surprises, you get to encounter ancient Egyptians, and there is some Mu stuff and even a dash of arachnos, and time travel.
Save The Diver, Save The World - 25-30 - ID: 855 - Brought the Coralax to the blue side for Heroes to fight and brings in The True Coralax (remember in game they are mostly hybrids) plus a new mob in Coralax lore (The Virtea) that never made it into the game, plus some customized mobs (see where the Freakshow make Freaks!) + the paradox of time travel!
Not Live (out of slots) Recently added under a different account...
These did not win awards, but I think they are pretty strong and hope to repost them one day once there is a way to gain a few more slots.
Condemning Croatoa - 25-33 ID: 17552 - So (Spoiler?) the premise of the Croatoa area is that the Red Caps want to subsume Croatoa back into the place from where it came. Veluta Lunata, a lore based Fortunata that fell out of Black Widow's good graces, is continuing to work her way back up into good graces with Black Widow (you can encounter her as a contact at lower levels in Port Oakes I think) wants to solicit your help to make it happen. For villains of course, its Croataoa and Midnight Squad lore-rich with several custom toons. You even get a chance to fight some named folk from the lore and (optionally) solo a Giant Monster (heavily play-tested, its all set up for you to win).
Robolution - 25-34 - ID: 17551 Someone is supplying robots to all of the CoH villain groups. Who? Is there a bigger plan? (lots of lore and gangs with robots in here but would reveal too much to specify - just - well - lore based tech suppliers and robot makers). Was going to make a blue side and a red side of this one eventually - making custom robot MMs for all the villain groups was fun.
Was also working on a Devouring Earth one when the game shut down - so that is in progress too I guess.
If you explore any of them, hope you find your time well spent!