Various cheats
     Start  the  game  with the -enableconsole command line parameter.
Then, press ~ during game play to display the console window. Type one
of the following codes and press [Enter].


Cheat code:             Effect:
god                     God mode
fly                     Flight mode
etheral or walk         Disable flight mode
upgradeweapon           Upgrade weapon by level
showhud                 Toggle HUD
slomo <0.1-1000.0>      Slow motion
behindview <0 or 1>     Toggle first person
allammo                 Ammo for all weapons
allweapons              All weapons
loaded                  All weapons, ammo
ghost                   No clipping mode
demoplay                Play indicated demo
demorec                 Records demo
stopdemo                Stop recording a demo


All Weapon Upgrades (DEMO VERSION)
Open the DefaultWeapon.ini located in the directory 
"C:\Program Files\Electronic Arts\Medal of Honor Airborne Demo
\UnrealEngine3\MOHAGame\Config" with Notepad.

     Press  Ctrl+F  and enter "ExpPointsLevel1=" without the quotation
marks.  Now  change the values for ExpPointsLevel1=, ExpPointsLevel2=,
and ExpPointsLevel3= to 1, 2 and 3.

So instead of this:

ExpPointsLevel1=25
ExpPointsLevel2=50
ExpPointsLevel3=100

it should read like this:

ExpPointsLevel1=1
ExpPointsLevel2=2
ExpPointsLevel3=3

     This  way  you  can get all the weapon upgrades after 1, 2, and 3
kills  instead of 25, 50 and 100 kills. Do this for each weapon so you
can  see  the upgrades available. In the demo you are only able to use
the  Colt 1911, MP40, Mauser K98, Thompson sub machine gun, and the M1
Garand.