I have seen intel reports of a new foe. The Imperial Knight. It is not pleasant reading.
Links on various forums have pictures up from an upcoming White Dwarf with the rules for at least two of these Knight variants. I won't link them up directly but I am sure you will be seeing them soon.
We are facing - (not breaking rules as they are in WD!)
Armour value of a Hammerhead, but 1 better on the rear.
A shield that covers a quadrant of the knight with an ++ save equal to a Shield Gen. Other areas are not covered. Player decides each enemy shooting phase which side is covered.
A CC weapon of D strength. In normal games...hmm.
Can be taken as Allies or as it's own army. In 1.5k games I would expect between 3 and 4.
Double the hullpoints of a Hammerhead. Super-Heavy Walker. Invincible Behemoth, etc.
Commanders, it is without doubt we will be seeing these very frequently. The models look stunning and if priced correctly, will sell like hot cakes. They can be taken as Allies so I expect to see 1 or 2 in most armies, at least Imperial Armies.
Initial tactics I have thought of is to somehow cover multiple sides of it's armour at once. With most of it's weapons I expect to this to be striding forward to get in to combat with it's D weapon and STOMP attacks. This should allow us to attack it from various angles and negate it's save. If we can get past this, I believe we can easily strip it's hull points. I am thinking deepstriking Fusion teams for rear/side and Hammerheads from the front to force a decision on which area to cover with a shield.
Against 1 of these I believe it will be straight forward. Against their own army of 3-6, I think this could be just impossible to take down in a standard game.
The Shadow that strikes, he that walks unseen