Note: This procedure involves editing a game file;
create a backup copy of the file before proceeding. Use a text editor
to edit the "skrimish.ini" file in the "C:\Documents and
Settings\User\Application Data\Command & Conquer 3 Tiberium
Wars\Profiles\ProfileName" directory. Change the "10000" number of
starting credits to any desired number.
Scrin campaign
Successfully complete the GDI and NOD campaign to unlock the four mission Scrin campaign.
Play as NOD in Skirmish mode (demo version)
At the Skirmish options menu, hold N and click your army to
unlock NOD as a selectable option. To switch back to GDI, hold G and
click your army. This also works for the CPU army.