I put psychotroke grenades on a tech marine. Allied up Se AM and put it in a blob squad. My opponent assaulted the blob squad with the tech marine in it. He never got in base to base contact with the tech marine so said the grenade does not go off since he wasn't assaulting that model but the rest of the unit. Can you please help me explain to him that the grenade still works..or explain to me why the grenades ability doesn't work since I'm not in base to base contact.