I've "upgraded" to medium difficulty.

That said, some campaigns which should have been a challenge (or maybe not, even...) before on easy are now a "whole 'nother animal" one difficulty higher. The first mission in Aeos affair is a bit tricky (and a little buggy... fail it and see the debrief... it just doesn't fit), but it's not deplorable. Deplorable is the mission where you're sent to protect the Praetor until the Hecate-class destroyer warps in. Spamming too many enemies into one place is miserable, uninteresting, and often unreasonable. For instance, sending in a
FRIGGIN' LILITH at point-blank range!

If you want a real shock, play Transcend one difficulty higher than you're used to... that probably means "not on easy" for most players. You'll find an 8-on-1 dogfight is really hard to make it out of with the unruly combo of Herc 2, Subach, Prom R, and Hornets. Now, the Herc 2 is great and the said weapons aren't bad (except for the Prom R... and Hornets for anything that makes evasive maneuvers...), but those things together will leave you fuming. If it was real, dead.
If my rant shall go on, the Lilith as a whole is an unreasonable entity. Unreasonable for a capship can mean awesome as well, but seeing as a Lilith is NEVAR on your side, it's just plain unreasonable!

Speaking of Transcend... The second-to-last mission. I think I had to play it twice before I beat it on medium, but that has to be one of the best final duals for FS out there! It's one heck of a dogfight, to say the least.
-Thaeris