Events:
Player 1 (Red) types a chat message containing spawn as A Substring
Player 2 (Blue) types a chat message containing spawn as A Substring
....(And so on until Player 12/10)
Conditions:
None
Actions:
Create 1 (Unit-Type((Substring((Entered Chat String), 7, 127)))) for (Triggering Player) at Position of Spawner facing (...)
Ok, this creates a unit by simply typing spawn Unittype.
spawn ghoul
spawn acolyte
Substrings? What does 7 and 127 mean?
7= The 7 is the spawn and the space after it.
spawn
123456
The 1 is the S, the 2 is the P, etc. The 7 starts in the next entered number or symbol after the space, so that's where you enter the unit type.
127 = I belive it's the maximum number of characters you can enter while playing.
For the spawner, you simply need creating a Footman custom unit and giving it a Start Location model, if you want, and set it's Collision Size to 0.00. The Start Location can be used by just double clicking on the Model File. Then you have a list of Units/Units-Missiles/Units-Special, etc. Select Extra. At the end of the list you'll see Start Location. Select it and press OK.