Yes, you can mod campaign mod on the Halo trial.
check here for basics and its custom edition http://www.econsultant.com/cheats/h/halo-custom-edition.html
There are 6 Halo games: Halo, Halo 2, Halo 3, Halo ODST (Orbital Drop Shock Trooper),halo wars, halo reach. you for get halo battle evolution
There are no cheat codes for Halo: Reach, nor any of the other Halo installments. However, glitches, or, bugs in the games programming, are abundant. Try Google to find Halo: Reach glitches, but remember; Nobody likes a Glitch Abuser.
Well, After I read a few Official Xbox Magazings I found out that it was in 2001
There is no cheats, just glitches
There are none
You can't cheat unless you have the Trial version of Halo Combat Evolved or you have the Halo Dev Trainer. You can also cheat on the edition to Halo Combat Evolved which is just a standalone version called Halo Custom Edition.*Please note that the cheats found online can only be used on the Halo Custom Edition and the Halo Combat Evolved Trial version. The retail version CAN NOT BE CHEATED on unless you have and are a modder.
no cheats in any halo game
halo 3 does not have any cheats
there is no such thing as halo cheats.
There is no cheats.
There are NO cheats. Only glitches
There are absolutely no cheats for halo reach, unless you count cheating as in breaking the code of conduct.
Yes, you can mod campaign mod on the Halo trial.
yes there is there are many cheats in halo
No, the trial is free. Also, you can install Halo For Windows without the trial