Is there firefight in halo3

we are not really sure if there will be firefight in halo reach,but it will have forge and all the same stuff Halo 3.plus there is going to be a new mode in the game called murder mode were you assassinate elites.that is all i know so go ahead and watch these links

YouTube.com/user/machinima#p/c/6656FE6D5A4D6973/9/CnrJ4e-TxU8">http://www.YouTube.com/user/machinima#p/c/6656FE6D5A4D6973/9/CnrJ4e-TxU8

and this

http://www.YouTube.com/watch?v=saU1IUqwhyA&feature=PlayList&p=Zt73DQ0uhHI

peace out!