Defend Your City

This game only got 4 heroes becouse i dunnoe want to make it a big map or not.
This map contains less trigger becouse i'm not so pro~ at creating map using world editor.
I often make trigger but it doesnt work. I also have make the little item, but i dont know how to combine item. . .
I make the minimap image already. But c?
it doesnt come out, and now i really dunnoe wad to do. I also cant protect the map. . .
Dead end for me!
OR?[i][/u]