Adding additional maps?

[n8thegr8]

hey guys,
I'm new to halo 2 modding, and my curiosity has gotten the best of me. Is it at all possible to add maps without overwriting existing ones? I've been tinkering around with it and can't get halo 2 to pick the added maps. I had an idea to add them into the tdata folder with the map packs as i thought that would be nice and neat, but that didn't work. Is there some sort of index file that references the maps or are they coded in the xbe? if so, there isn't any way to decompile and mod the xbe file is there? thanks for all your help guys.
Nate

[shade45]

Dropping them in the tdata wont work... but follow this tut and u'll be able to do it
http://files.halomods.com/viewtopic.php?t=31955

[n8thegr8]

dood, thanks so much, I searched for hours for this and couldn't find a single thing. guess forums are good for something I dunno why I didn't think about hex editing it...anyway, Thanks again!!!!!!!!!!!!

[shade45]

no problem

[Saber_8]

i have a question about this topic when i do this i can add as many maps as i want but only 2 work the others after the 2 fail to load wats wrong

[343GuiltySparkIVIX]

Either you didn't sign them, you made an error in them that keeps them from loading, or you mispelled the name in the scenario path.