I'm just recently well enough to return to running my campaign, and the first session back I ran an underlevel complexity 4 SC to handle progress toward finding a certain goal in the Elemental Chaos. It was mostly RP, but at some points, failure could trigger a quick encounter.
Second session back (last Wed), started with an SC combined with combat (well, with being attacked). ...leaving a lot of stuff out, but...
The ship was flying through a vast storm in the elemental chaos to reach their goal, it's epic-level lightning resistance was holding up against the 'natural' lightning strikes, but it started taking damage, and individuals started getting hit - there were tempest archons harrying them from total concealment in the clouds.
They debated firing the ship's gonnes into the clouds, closing directly, or making a stand in a clearer region where they'd be able to see them - they settled on the last, the skill challenge ensued, on enough success, they got clear shots at some of the archons, and at one point overran several of them, on a failure, they were boarded by a few soldier-archons.. and, ultimately, they - barely - failed, breaking out of the clouds where the archons' boss was waiting, and battle was joined, the archons staying at range, still with some concealment thanks to the partial-failure, and the boss, a Djinn, and more soldier minions, boarding.
From there it was meant to be a straightforward Elite+Minions combat, but one of the players got the idea that they should negotiate, so, while disposing of the minions, negotiations were opened, more and more of the PCs joined the later, and, while the minions - that the boss didn't really care about, he could reconstitute them if he wanted - were destroyed, the Djinn finally accepted their story that they were not servants of the gods, but were looking for knowledge of, and paying respects to, the slain primordial he had formerly served in the Dawn War.
So a planned SC, though of uncertain objective, and an impromptu one, both combined with combat - first a running battle, then a set piece (of sorts, that ship has been boarded a /lot/ over the years).
...nothing this week due to the 4th, we'll see what happens next time...