The heavy firepower of the Knights is to be expected, but one would think once the surviving Tyranids got into hand to hand they would do some good damage. Not even close. It was a disappointing battle for both sides.
This battle did point out just how much the Tyranids have lost in anti-tank capabilities. Just the one (huge) change to monstrous creatures losing the extra D6 on the penetration roll is crippling. But add the lessening of Rend, and the complete lack of high AP weapons and there is really not much of a chance for the Tyranids to beat The Knights, or any army that has a few AV.13 or better walkers or tanks.
More Tyranids need to be able to take some kind of Armourbane. Tygons, Tyrannofex, and the Hive Tyrant have to be able to beat up a Land Raider, or a Knight in Hand to Claw/Tentacle combat. We are going to try a house rule or two and see how that goes. I just want the monstrous creatures to be monsters again.
The Emperor Protects
Sometimes by Editing His Foes