Beat level 8 Fire and water level with 100 000 or more points.
Beat level 7 Streets of bucharest level with 100 000 or more points. Beat level 2 Precious cargo level with 50,000 or more points. The Golden Gun is a slightly more powerful version of the Wolfram P2K. With a Platinum rank and all 007 icons successfully complete the Evil Summit level.
Beat the Night of the Jackal level with a Gold rank. Beat Precious Cargo with a score of 50,000 or greater to unlock the Golden CH-6. Beat the Evil Summit level with a Platinum rank and all 007 icons. Beat the Streets of Bucharest level with a Gold rank. Beat level 3 Dangerous pursuit level with 70,000 or more points. Beat level 5 Cold reception level with 90 000 or more points.
Beat level 4 Bad diplomacy level with 70 000 or more points. With a Gold rank successfully complete the Evil Summit level. Beat level 10 Poseidon level with 120 000 or more points. On Evil Summit after you shoot the snipers, go to the tower on the left and use the remote on the green signal. Platinum Medal will allow you to use the Viper pistol in multiplayer. Alpine Guard is yours if you manage to secure the Platinum Medal.