''Village Defense'' Arena project

''Village Defense'' Arena project

im trying to make my first survival game . If anyone can give me some hints, it would be nice, if you want to help me in my map tell me and ill give later my msn. its a small map but i think it will be cool

Ok, i started making it, now im doing the spawns, i need to know how to make condition, to when a player enter a region if its the first time it will spawn the wave1, and then the second Wave third etc...anyone can help me