So many ways to do this but this is pretty hilarious haha! I like to use the tanks on the Valus strike and boost into the phalanx majors. One time I squeezed one between the tank and a box and he went flying off the map in the blink of an eye. Another good one is where I ran Titan on Will of Crota and punched a thrall when my teammate was on the other side of it and it sent him flying to the other side of the room and killed him. Almost died because I was laughing so hard and didn't pay attention.