More Money
Make a back-up or you may mistakenly alter your NTSF or FAT. Locate the MainINIFile.ini file in the ...Program FilesPopTop SoftwareShattered UnionDataOther directory. Change the file attribute from Read-Only and open it using a text editor such as Notepad.exe. Search for the string:

- "INT SellPercentageOfPurchaseCost=75"

and change the value to 1000 (or anything over 100). Save the file and boot the game. When starting a new campaign, immediately sell all your units and you will receive the amount of money equal to the percentage you entered.

UFO crash site
In the New Mexico territory, look near Roswell to find a small flying saucer that has crashed and little green aliens with an SOS sign in the sand. When you go over that particular hex, at the bottom where it tells you what kind of land form you are on, instead of reading "Hill" it displays "(???)Hill".