I've got a set of 3 more missions I'm currently working on:
Showdown - easy to medium - a very simple one-on-one onslaught battle. Currently working on making it a bit more challenging based on variants, as its very easy right now. Mostly just for some pew-pew-pew *aslosion* filled goodness.
Brief: kill the traitor onslaught with your own.
Pirate raid - medium - mostly done to show off the atlas 2 carrier, and the buffalo (vanilla ship), which is not currently in any of the stock missions. Also has an anvil.
Brief: take the role of the pirates and stop the escaping freighters and escorts.
Safe Passage - impossible - another escape mission (like the original impossible mission); this mission shows off the anvil in both variants, the vigilance in all 3 variants, the brawler, and the phoenix... not to mention another appearance by the David Hasslenaught- I mean the modern Onslaught from the mission 'survival'. (Along with a whole bunch of other, older, Onslaughts).
Brief: take command of the TTS Pandora (Astral class elite carrier) & ESS Phoenix (Phoenix class assault monitor) and their respective escorts (frigates and fighters), and escape from the massive hegemony forces.
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Also, if anyone has any suggestions for missions they'd like to see, I'd be quite willing to look into those as well!