Cheat List
During game, press F12 to open the console and type the following to gain the effect. Push F12 again to close the console.

transports ... add transports
escorts ... add escorts
nuke ... +1 nuclear bomb
supplies ... +5000 supplies
coal ... +5000 coal
steel ... +5000 steel
rubber ... +5000 rubber
oil ... +5000 oil
manpower ... +5000 manpower
di ... set influence to 500
nolimit ... remove troop building limits
difrules ... toggle god mode
nowar ... toggle AI aggressiveness
norevolts ... toggle revolts
nofog ... toggle fog of war
handsoff ... toggle automatic pause on events
showid ... toggle province ids
fullcontrol ... toggle control of every nation
war ... ready to start war

Cheat: Complete Control
This will add hours of fun to the game:

1. Begin a game.

2. Save the game - remember the name.

3. Exit HOI

4. Find the Hearts of Iron directory - under scenarios/save games.

5. Find the name of the game with the .eug extension - open it in wordpad.

6. If playing:

USA - search for 'tag = USA'

Germany - search for 'tag = GER'

France - search for 'tag = FRA'

England - search for 'tag = ENG'

7. Either scroll down, or then search for 'research_cost_app'

8. The next 4 lines will decide how long research takes. 1.000 is normal - lowering it to 0.250 will make it really fast. Do not go lower than this, as an error may occur as technologies are discovered.
Note - looking through this section and making minor tweaks can change the entire landscape of the game. Also, scrolling down further, you will find generals. Decreasing the Rank = number will promote them - a zero (0) is Field Marshall/Grand Admiral etc. Increasing the skill will make them better - try not to go too high, as I do not know the limit of the game's logic algorithms.

If you make any mistakes - simply go back to step one. This does nothing to change the game itself, only your saved game.