I've got it. It has some relationship to Fire & Fury, although I wouldn't call it a copy, but it shares some of the ideas (e.g a combined move/morale check).
You'll need a lot of figures - it's really designed for 15mm or smaller scales.
Death in the Dark Continent covers the same ground, requires fewer figures, and seems to do the Zulu war pretty well; if you are using larger scales, I'd recommend those rules.