Editing Warhammer 40,000/7th Edition Tactics/Imperial Knights (section)

==Cerastus Knight Castigator (Forge World)==
This guy has a 8 shot str7 bolt cannon which -much like the Fire Raptor's Avenger Bolter- makes a good job of killing MEQ out in the open or knocking hull points off of mid-AV vehicles, but it also makes for a better stand-in AA weapon than the Lancer's Shock Lance due to having more shots and being twin-linked.

His sword is also pretty nifty, if only S10, with deflagrate and sunder rather than a destroyer weapon.  Though deflagrate + tempest attack means that it can theoretically kill every single model in base to base contact with itself, this works better for large units of weaker enemies where a Destroyer melee weapon might have been preferred against smaller, more resilient units. There is always Stomp attacks however.

This guy's real weakness, though, is that he only has the bolt cannon. You need to charge the thing you shoot at, and whatever he shoots at is going to be hurting a lot anyway, so you are going to have issues of overkill when you shoot up 8 Tactical Marines, and charge them just to kill the two leftover guys, not the next unit over.

As for making it a warlord to get the baron bonus? The Lancer is still the better option, since the Castigator doesn't really need WS/BS 5 to make it any better, since Tempest attack hits automatically and its gun is already quite accurate, while getting trapped into challenges would effectively wipe out its multiple strike ability.