Ah! found a few not great pics of the aforementioned last game with 15mm Brits on Mars fighting the Cephalid menace out in the deserts of Mars (note red weed).
The Brits advanced firstly with tracked contraptions supported by some clunky steam walkers, the aerial gunboats were there but kept their distance mostly while the ground forces mixed it up with the squiddies.
then rather belatedly the infantry and cavalry caught up with the advance and some lancers can be seen rather cheekily poking a small Cephalid flyer who came too close! the cheek of it. probably rather ineffectual, but dashing of course.
shame I didnt get more pics as there was a lot more going on off camera.
fun though, and a workable mix of scales, I thought.