First you have to open the liberation day catalogand find the libday-ini-file. 

 

In the file you change cheats=0 to cheats=1 and save. then you can cheat with the following cheats while the game is running: tab+W -win the scanario 

tab+L -lose the scenario 

tab+D -get money in deployment mode and city mode 

tab+R -give armor to your units 

tab+P -unlimited movement