1st is how do I make my guy create a building. Like Im trying to make it so you charge up the builder wep then when u let go it make a building like a bunker for example then that bunker is able to be killed? Like the snow walls in Boings jingle town.

2nd How do I create a wave mode like in Battle Arena 2.0 with levels of people?

1: use a dispenser weapon that dispenses a building (check the mine ODFs)
2: I hope you know how to code LUA, cuz it requires a ton of it. but the basic outline is when the player spawns, spawn 2 units from enemy team of a certain class. when those units are killed then spawn 4 units....u get the point hopefully.

Thank you for the broad idea but could you specify it a little more? Like what do I change for the odf and how do i make it so i has to be powered up all the way before you can place.

Also if you could specify more on the wave like show me a tutorial or how to do it exactly that would be great!