T-REX hunting behavior

Now that Trex has strong evidence of being at least partially hunter, how do you think it hunted? Here's my theory: Trex hunted in packs, age ranging from sub adult to oldest. Once a male & female mated, the male stayed with the pack and the female went off to make her nest. Once the eggs hatched and grew large enough to fend for itself, the mother abandoned it and had to try to get into another pack. Once the sub-adult aged enough it too would try to find a pack. How to you think the king hunted