There are known cheats you can append to the executable when it's executed. Right click the launcher on your desktop and append each line to the executable path. It should look something like this:
"C:\Program Files\Ubisoft\Far Cry 2\bin\FarCry2.exe" -GameProfile_UnlimitedReliability 1 -GameProfile_AllWeaponsUnlock 1
Cheat list:
-GameProfile_GodMode 1
-GameProfile_SkipIntroMovies 1
-GameProfile_UnlimitedAmmo 1
-GameProfile_UnlimitedReliability 1
-GameProfile_AllWeaponsUnlock 1
