Go to extras and go to the comcast thing then type in comcast faster and get a new map

I'm trying to beat this big monster thing In the King Arthurs level, I got all 3 of those gate things down, but I don't know how to do the last one.

I need to know ASAP

Thanks

To kill enemies with a single shot complete the game and finish the bolivia redux (level 8) time trial in under 4:15 then enter the following code during play


Xbox: hold L trigger and press y,a,y,x,o,b
Playstation 2: hold L1 and press triangle,x,triangle,square,L2,and o
Xbox 360: hold L and press y,a,y,x,L button,b.




And the cheat of one shot kill should work.