There is a wicked rumour that the Suffolks (currently fighting the wily Pathan on the NWF in my TMWWBK play tests) will also be called upon to take on the Mahdi AND shipped down South to deal with the pesky Boer... They don't half get around... ;)
And I agree, the helmet flash may not be 100% accurate for the 2nd Afghan War, but it does look rather spiffing...still trying to decide what colour(s) to do mine on my Artizan figs...