XCOM: Enemy Within cheat codes:
Secret hero units:
Go to the Barracks, and select the "View Soldiers" option. Choose a soldier,
then select the "Customize" option. This can also be done from the "Customize"
menu at the "Deploy" screen. Change the name of the soldier to one of
the following names to unlock the corresponding hero. These new heroes
will dramatically improve the unit's stats, and they also have a unique
nickname. Note: Using these special heroes will prevent achievements
from being earned.
* Joe Kelly (Heavy): Enter Joe Kelly as a name.
Joe Kelly is a popular comics author that has
worked on Spider-Man, Superman, and many other famous characters.
* Ken Levine (Sniper): Enter Ken Levine as a name.
Ken Levine is the co-founder of Irrational
Games, the developer of BioShock, Freedom Force, and System Shock 2.
* Otto Zander (Assault): Enter Otto Zander as a name.
Otto Zander is the hero and survivor of GuavaMoment's XCOM Let's Play series
from the Something Awful Forumes.
* Sid Meier (Support): Enter Sid Meier as a name.
Sid Meier is the co-founder of Firaxis & creator of the Civilization series,
Pirates series, and more.