This is the most interesting and moving set of figures that I have seen here and depicts the worst batallion loss for the British in the peninsular campaign and the greatest loss to the Buffs in their history. On the morning of May 16 !815, for whatever reason -- and plenty have been given -- the 1/3 (Buffs) was ridden down by the Polish Lancers (1st Vistula) and French 10e hussards. Of 728 men who marched into battle that morning, 643 were killed captured or wounded too severely to answer roll call.
Although the officers carrying the Colours were ensigns, both were killed early in the short battle. Ensign Thomas, who, at just 16, would be a high school sophomore in a slightly saner world, chose death rather then give up the Regimental Colour, and was cut down as it was taken, though later retrieved. Ensign Charles Walsh carrying the King's was also struck down after the Colour's pike was shattered by a cannon ball, and it was siezed by Lt. Latham. He received terrible wounds to the face and his left (or right, according to who is telling the tale) arm was almost completely severed. He wrapped the Colour round his body and finally sank to the ground. Amazingly, he wasd found still alive after the battle and with the precious cloth still wrapped around him, and he even remained in service for a few more years.
If you decide to go with Lt Latham and the King's Colour, there are two good pieces of news. The uniforms of subalterns were identical at the time, so the figure's promotion will not require any changes. Osprey Elite #81, British Colours and Standards 1747-1881 plate D1-2 has a detailed illustration of the King's Colour of the period and a great pic by Richard Hook of Lt Latham with both arms intact; the only minor error that I see is that the pike is also intact. What is also interesting is that for anyone with a penchant for scratch building, it gives an alternative uniform for the lieutenant. The use of the tailcoat and breeches and the cocked hat were rapidly dying out at this time and were "officially" reserved for dress use in 1812., but as always in combat, few attend to the niceties of uniform regulations, and the buff (instead of the normal white) breeches would have to look great. For what it is worth, the silver Latham Centerpice that used to grace the officers' mess shows him in jacket and shako (stovepipe pattern throughout the peninsular campaign) with his left arm missing. Finally, as always, C.E. Franklin's British Napoleonic Uniforms is an essential and standard resource.
Forgive me if I got a bit carried away here, but the British Army has done what no foreign army could, and there are ever fewer of us left to tell the story.
