Afghanistan civilians ambush groups of British troops moving into the country, it involves disturbing the horse and having higher ground.
also some of the civilians hide within the sand(or behind rocks) and use melee weapons such as sword to catch small groups off guard.
Fast horse raids are made on camps with oil torches to burn down tents and also loot supplies when possible from camps.
Rifles, the luxury they already are, are prioritized as something to steal from the british troops