Here this is a small group of people creating the Pack called MtYz Raygun credits will as follows

Ray gun model -  Mathai_asz
Ray Gun Animations - Argos Williams
Ray gun Sounds - Tryarch Activision

Black Ops M1911 SOunds by Tryyarch Activision
Ray Gun Muzzle plasma effects Argos Williams
Fire Staff Impact  by  Raphael Hatencia