I have came over some intresting trigger like when you enter "power overwhelming" or "black sheep wall" the trigger is activated and the game ends. Does anyone know how do they do this?

that would be single player cheat codes, there is no way to detect text messages with map triggers.

i know that it's single player cheat code, but like in the map Creepy Mansion, when you enter in power overwhelming, it detects that i have power overwhelming on and then ends the game.

It probably uses a unit to kill one of yours somewhere, if the unit does not die, it means you are using the cheat. the black sheep wall one probably detects when you shoot a unit that you cannot see.

http://www.maplantis.org/index.php?pg=wiki;id=58#wiki_20

Doesnt have to be one of your units. Computer players don't kill each other either.
You are the only killer when 'power overwheling' is on.
This rly can screw up some maps...

Detection for 'black sheep wall' however has to use one of your units. Probably the maker placed a weak unit out of sight of a strong unit of yours and checked if it dies. Since you don't see it, it wouldn't die normally, but will with cheat on.

sweet! it worked thanks still got a long way to go though

The best way to stop people from using single player cheats, is to just pause the game at the very beginning. It's as simple as that. If the player is in single player mode, they won't be able to do anything, if they are in multiplayer, then cheats won't work, and the pause will not run.

And if you don't even want them to even see the map at all, have crashing units all over the map, and remove them as soon as the player moves their first unit, then if they try to use black sheep wall while paused, they will simply crash.