Half-Life: Firearms (PC)
Go to RUN on your start menu. Type in - HL.EXE-CONSOLE hit enter. You will have to start the game like this everytime you want to cheat. The only thing different will be a console button in the menu screen. Click on it then type in - SV_CHEATS 1 - this will enable cheating. hit ESC to go back to the menu screen. Load you game now. When your game is started stop in a safe place and hit the Tindle key ~ on your keyboard. (top left under Esc button) When the screen pops down keyin - SV_CHEATS 1 - enter. Then keyin /god for god mode or /noclip to fly through walls and stuff or keyin /give_ammo buckshot or replace buckshot with the following if you want other stuf - mp5clip, gaussclip,egonclip (egonclip smetimes crashes the game) 9mmclip.