4 Rifles

Hi, I am in the process of joining the rifles and was interested in 4 rifles. I know that there mechanised and based in bulford but was just wondering what seperates them from light role infantry. I thought it was because they use the bulldog but surely so do other Battalions that aren't mechanised. Can anyone clear up my confusion?


all help appreciated
so 4 rifles dont go anywhere on foot?
Tab back from Warminster when they've spanked all their cab money on beer.