No, it is doubly redundant. You can both not place the Zone in base contact and not the model. ITS rules only removes the Zone, so the rules for model placement still apply. http://infinitythewiki.com/en/Airborne_Deployment_(AD) This is found under "Airborne Deployment", not "Airborne Deployment Level 4: Combat Jump". Troopers using Airborne Deployment cannot deploy Prone or in base to base contact with another model, Marker, mission objective or piece of scenery.