RandomSpawner

NOTE!:I had to double post because the last one didn't get any much answers.

i am planning on making my own Wad but not Releasing it or Publishing it,I am just trying to experience making my first Wad and try finishing it without any problems.Well back to the Subject,I am looking for an easy Explanation on using the RandomSpawner cause the reason is that i downloaded a DoubleChaingunner like this one and i wanted to make a Regular ChaingunGuy and the DoubleChainGunner to be spawned together when starting the Map without using Doom Builder or anything else just the RandomSpawner Actor

To avoid Confusion here's just a picture i made myself.