Hidden & Dangerous чит-файл №1

Use a HEX editor and go to your saved profile in the savegame directory:
                               
offset
120 Campaign reached (byte, value 2 = campaign 3 reached)
122 Level Reached (byte)

Note:
If you haven't played the 1st level in a campaign you will not be
able to play in the other levels since you have no record of selection
soldiers (which you always do on the 1st level of a campaign).