# Infinite credits in Skirmish mode
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.
# GDI attack combinations
The following are attack combinations you can use in Skirmish missions:
Pitbull
Predator Tank
APC with a Grenadier Squad inside
3 or more Rifleman Squads
3 or more Missile Squads
2 APCs with Rifleman Squads inside
2 APCs with Missile Squads inside
2 Grenadier Squads
2 Rifleman Squads
2 Missile Squads
# NOD attack combinations
The following are attack combinations you can use in Skirmish missions:
2 Militant Squads
2 Militant Rocket Squads
4 Raider Buggys
2 Flame Tanks
2 Scorpion Tanks
4 Raider Buggys
2 Attack Bikes
# SCRIN attack combinations
The following are attack combinations you can use in Skirmish missions:
4 Buzzers
4 Disintergrators
3 Seekers (combined with Buzzers)
3 Gun Walkers (combined with Buzzers)
# 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.