I was browsing through the forum but couldn't find a discussion on my specific problem....sorry if it is already posted.
I recently downloaded the British Rifle infantry,
http://www.armaholic.com/page.php?id=11298#c47761
I installed it but now I don't know how to choose the unit(become the unit)

. I want my character to actually be the British 3 Rifle Infantry , every game I host, my character and supporting units still USMC, if I edit the MultiPlayer match I can add AI British 3 Rifle Infantry however and the textures looks great on them.
We are planning a multilayer session on the "Superpower" setting and it would be awesome if we could choose the british units for a change, any help would be appreciated