Help with how to kill a unuit that leaves path

[fogest]

well im kinda working on a maze and i was going to put in like tons of regions to kill the guys when they walk off the path but... it takes for ever to do that so i was wondering if anyone knew how to make so that if for example blademaster hero guy walked off grass from loraden summer and went on dirt from same tile set i would want him to die
i know that there is a way and i have looked on this website already and they had a code for it but i could not get it to work cause i didnt how you loop actions

if anyone knows how you would loop actions that might help but it would be easier if you would just post help

i will also give

plz i typed a lot so plz help me out

[Parrothead]

I have my own demo maze map thing. Let me get it for you (it contains the code you seek). One moment.

Edit: There.

[fogest]

Um i tryed to open your map but nothing comes up on it and i think i am opening it it right you doulble click it it takes you to the WinRar progam and then you double click the file its in and then double click the warcaft file the one with the sybol then it opens the map editor but nothing is there.
Could you plz just post the instructions but plz make sure they are very specific
ty ty ty