Front Rank...Fire! The Zulu War 1879 - Skirmish Wargame Rules.

From the rulebook:

"These rules are intended for small unit actions, involving a handful of British and a larger force of Zulu. In general, odds of around 3:1 in favour of the Zulu produce a balanced game. The Zulu should be grouped into units of 20-40 figures each."

"Ground scale is 1 inch to 2 yards (ie. the same as the figure scale). Time scale is one move represents 6-8 seconds of real time. Figure representation is one figure to one man."