Call Of Duty Sierra Leone mission features lots of good nigger batwinging

I've played through this mission many times. Lots of action and entertainment. And niggerstomping goodness. ;)
https://www.youtube.com/watch?v=eHhCwrbz3Gw

Around the 1:50 mark, Capt Price tells you to light up a nigger who is about to set another nigger on fire. :bat

So how does this work? Can I just jump into playing this particular mission or do I have to endure the preceding missions first? TIA.