Editing Warhammer 40,000/9th Edition Tactics/Weapons (section)

====Imperial Knights====
The Imperium's big walkers (or the smaller version of titans dependind of your point or view) will usually have a very small army model-wise, but oh boy what models. They are all heavy vehicles with 10+ wounds, 2/3+ saves with different degrees of invulnerable saves, T7+ or higher, and a lot of customizable firepower (both ranged and in melee, their units are so big that even shooty units will be really strong in mele). Also due to their small body count most of them will have the "objective secured" rule, otherwise they would be pointless capturing objecties. 

Their strength is obvious, being able to fight almost everything and come out on top, and being resilient enough to resist the entire match without dying, even if the enemy focuses fire on one. However, that's also their biggest weakness: their smaller body count means that they will be outmanouvered by pretty much every faction (even Custodes will have more bodies than a purely Knight list), so they need to either tread lightly or get some allies. Also, due to ther insane point costs, the enemy could dedicate a couple of their heavy hitter units and kamikaze them against the knights and still be cost-effective. The loss of a big knight can cost the game.