Star Trek: Armada 2 (PC)

50% Shield Boost
While playing, press enter and type IMPERMEABLE. This should make it harder for your enemies to damage your systems and your shields will take longer to fall. This works on any species.

Transport Through Shields
While playing, press enter and type GOTCHA. This will allow you to transport without dropping your shields. The blue shimmer around your ship will still appear, but your systems wont take damage the same way they would with your shields down.

Enter Gamma Quadrant
The only way to enter the gamma quadrant is to go to your bedroom and have a nap. The cheat IMOUTTASTEPWITHREALITY does nothing. The gamma quadrant is probably mostly uncharted for this reason.

Faster Warp
During gameplay, press enter and type GOBABYGO. This will make your ships go at least twice as fast, depending on what race you are.

Better Cloaking Capabilities
During an Instant Action game, press Enter and type SEEYOULATER to make your cloaked ships impossible to find. This only works if you are the Romulans or Cardassians. It will not work for ships you have taken over or assimilated.

More Powerful Weapons
During gameplay, press Enter and type TARGETAQUIRED. This works best with the Borg, and can only be used with the Borg, Klingons, and the Federation.

Better Ship AI
Whilst playing press Enter and type CANOFWHOOPASS and press Enter again.

Mission Skip
Whilst playing press Enter and type KOBAYASHIMARU and press Enter again.

More dilithium
Whilst playing press Enter and type SHOWMETHEMONEY and press Enter again.

Enter Gamma Quadrant
Whilst playing press Enter and type IMOUTTASTEPWITHREALITY and press Enter again.

Fast Ship Production
Whilst playing press Enter and type YOUSTOPMECOLD and press Enter again.

Fast Crew Production
Whilst playing press Enter and type AVOIDANCE and press Enter again.

Add Dilithium
Hit [ENTER] to bring up the comm screen, then type "showmethemoney" to add 2000 dilithium.

Cheat Method
Open the RTS_CFG.H file. Go to the line under difficulty settings and modify the line to says what you want.
// // DIFFICULTY SETTINGS // // Damage coefficients for incoming damage for user in single player float
EASY_DAMAGE = 0.5; float HARD_DAMAGE = 2.0;

If you set it to 0 your ships will not be damaged. However some nebulas still damage the ships if you leave them in it to long.

Increase Officers
To increase the amount of officers just change the following line in the RTS_CFG.h file for Armada II from 600 to 999.

// the max value that officer capacity can be in a single player game, and default in multiplayer game. int SINGLE_PLAYER_OFFICER_LIMIT = 600;

NOTE: Always make a backup before editing files.

Increase Transporter Range:
Go to the RTS CFG file and unclick the Read-Only box in Properties. Then go into the file and change transporter range to 50000000000 to get full map transports.