It's possible to get two heroes in Walker Assault/Supremacy at the same time.

Me and my friend were playing last night and my buddy picked up a Hero token and activated it, then he didnt select a Hero right away. I then picked up a different hero token and picked Leia. Right after that he picked Luke, and we both were on the map at the same time. Could someone try this out and see if it works? I know it will be hard to recreate but it was on the Jakku map, I'm sure it works on others.