Shift + c to open console

#johnconnor
disable AI

#iamback
enable AI

#igotnukes
instant (minor) victory

#whiteflag
instant defeat

#warbonds
+500 resources

#warbonds +- x
+- x resources

#orbitalcommand
disable fog of war

#income <x>
<x> income per turn

#overtime <x>
<x> extra turns

#landcp <x>
<x> more Land Command Points

#navalcp <x>
<x> more Naval Command Points

#aircp <x>
<x> more Air Command Points

#epiphany <value>
Gives <value> Spec Point

#gimmeall
On the Main Menu to unlock all scenarios for individual play, even if you haven't completed the mission in the campaign yet

#videomode on/off
Turns the UI off or back on again

Many thanks for aiding an honourable gentleman in evening up the score. Rule Britannia!

The cheat list has been updated:

Press Shift + c to open the cheat code console. Enter hashtag (#) followed by the cheat code. Where indicated, enter a number for "X". Some cheat codes have on/off toggles.

#johnconnor
disable AI

#iamback
enable AI

#orbitalcommand
disable fog of war (for the AI as well)

#igotnukes
instant (major) victory

#whiteflag
instant defeat

#warbonds
+500 resources (applies to all human-controlled factions)

#warbonds +-X
+ or - X resources (applies to all human-controlled factions)

#income +-X
+ or - X income per turn (applies to all human-controlled factions)

#overtime X
X extra turns (added after current turn ends)

#landcp X
X more Land Command Points

#navalcp X
X more Naval Command Points

#aircp X
X more Air Command Points

#epiphany X
X more Specialisation Points

#stimpack X
with a unit in focus, adjust its strength to value X with a maximum of 20 (adjusted after current turn ends)

#shockandawe
unlocks the gorgeous commander Lieutenant Lena, who is not just eye candy (adds 100 shock capability to her assigned unit)

#gimmeall (works with the game's main menu screen in view; may take a few seconds to complete)
unlocks all purchased DLC scenarios for individual play, even if preceding missions in the campaign are not yet completed

#videomode on / #videomode off
turns the UI display off or back on again (#videomode on means the UI display is off, and vice versa)

#instakill / #instakill off
kill a unit with a single shot (used for scenario testing — applies to the AI as well unless turned off or the AI is disabled)

Very, very sweet. Mahalo nui loa for your kokua. A hui hou. ;-))