Cheat mode:
Hold [Ctrl] and press [Enter] to display the console window. Type one of the 
following codes at the console window to activate the corresponding cheat function. 
Note: The unit spawned will appear where you started in the current level. When 
tanks and field guns are spawned in beach levels, those units will appear in 
support boats.

Effect - Code 
All units repaired - strong man  
Unlimited ammunition - keep ammo  
Spawn Sherman tank - get sherman tank  
Spawn mortar infantry - get mortar infantry  
Spawn recon infantry - get recon infantry  
Spawn rifle infantry - get rifle infantry  
Spawn Give HMG infantry - get hmg infantry  
Spawn ammo supply truck - get ammo supply truck  
Spawn half track - get half track  
Spawn howitzer half track - get howitzer half track  
Spawn field gun - get field gun