Press Enter during the game and enter these cheats:

autowin! Win mission
toggle bottombar Switch bottom display
dolemite Invincibility
paul haney sees all Show enemy soldiers
set_campaign X Go to new campaign, X is one of these:

                     Angola_tutorial 
                     Angola
                     Romania
                     Kola
                     Caribbean
                     Kola_2
                     Ecuador
                     Peru
                     Angola_2