No set of artillerymen that I have yet seen includes the men who hauled on the ropes (traces) to pull the guns into position - I would like to have some of these for Napoleonic sets. Also, artillery figures for some of the smaller nation i.e. Germans, Poles, Spanish etc.
You might look at the Yankee/ Confederate Engineers on PSR that Revell did a number of years ago. The have men pulling ropes that I use to move cannons back in position. If you swap hats, I would believe they could serve in other wars !