I've taken to using MW:DA infantry & BA units, popped from their dials, as platoon markers. There's 3-5 infantry, or 1-3 BA, on the "kidney bean" base, which takes up half a hex - which I find convenient, as it makes it easy to have two infantry per hex. It's got to the point that if I'm mounting IWM metal BA, I'll cut a plastic hex in half to mount them on.
Variations? Some MW:DA BA are bigger, like the Salamander, and I'll fit two on a full hex base. And I'll put de-based field artillery, or mortars, on a full hex with a little terrain, and some additional figures. I'll also mount a single figure on a small coin to represent squads.