Quake 2

Bronze Cheat
To get extra options on multiplayer complete the game on easy difficulty and save on your memory card you will then have two extra options on multiplayer which are.."One Hit Kills" and "Weapon stay"

Gold Cheat
To get gold you must beat the game on hard. Winning gold will give you infinte ammo, all weapons and all the rest of the multiplayer codes you recieve when you win silver and bronze.

Silver Cheat
To enable Silver Cheat, finish the game in MEDIUM difficulty. This will open 2 more bars in multiplayer mode: Game Speed and Blast Force. Plus it will unlock the multiplayer cheats you get for winning bronze.

Hints
Easy Way ToDefeat Makron
To defeat Makron easily, just strafe around the pillars and shoot rockets at him. Be quick, since he can take you down with one shot from the BFG 10K. When the robot machine gets destroyed, stand in a corner of a pillar and angle your view so you can hit him. This will cause him to become confused and walk back and forth. Use grenades or rockets to destroy him.