Hi guys !
I’m trying to do the Oklahoma challenge by training 10 cow-boys with the British revolt but it doesn’t work, do you have some ideas to complete this challenge ? 
Hello there! One of the easiest ways without the need for a revolution is play as Spanish. Build tavern and atleast queue 15 comancheros to make sure more than 10. This is what I did for that challenge.
Thank you for your answer !