British units were organized into Brigades. If you can identify the Brigades that was there, then you can find out the regiments that were in that brigade. Each British Reigment had several battalions and they usually served in different areas. (This derived from WW1 when regiments were raised from one local area of Britain and when the regiment suffered in combat the local community was devastated.) Therefore, one specific Regiment might be found in many Brigades.
For US regiments, you identify the Infantry Division and that will tell you what regiments were there.
Infantry Regiments (30)
Most of the black regiments were formed in 1864 and 1865.
Illinois sent more than 170 regiments to fight in the Civil War.
In the US Army there were four regiments to a division in WWI. There were two brigades in a division, and each brigade had two regiments. US divisions were huge compared to those of every other major combatant, with about 26,000 men. The British system was more complicated. They have a number of regiments with a long and distinguished lineage and history. But British regiments did not fight as formations. Each British regiment has a number of battalions. In the British system three battalions, almost always from different regiments, were brigaded together. Three such brigades made up a British infantry division.
there was no battle of antietam
For Skirmish Dday you have to call. I assume it is the same for Oklahoma and other big dday games also.
Black regiments
Dday
jaankaree, aank-dday
http://www.britannica.com/dday
Infantry Regiments (30)
In 1930 Regiments were 1000 troops strong
british regiments
how many tanks were there durind dday
Gorkha regiments - India - was created in 1815.
Hundred Regiments Offensive happened in 1940-12.
5th and 6th regiments