i've already mentioned that in my 1st post
//rnd_q[int_rndQuestionSelected].model; //stores the model name
use
ent_create(rnd_q[int_rndQuestionSelected].model, vector(-10, 0, 0), NULL);
to create it, obviously change the position to where you want it created and add an action should it need one.
Make syoure you're creating it AFTER you've set the random number
