Editing Warhammer 40,000/Tactics/Questoris Knight Crusade (30k) (section)

===Cerastus Knight Castigator===
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.

His sword is also pretty nifty, if only S10, with Deflagrate and Sunder rather than a destroyer weapon. Deflagrate + tempest attack means that it can theoretically kill every single model in base to base contact with itself and then some more (S10 brings ID even to Custodes), this works better '''both''' against large units of weaker enemies and smaller, more resilient units as they will likely pile in to your base before I2 - right to their doom. The only situation the D is better is against some really resilient Monsters or other Superheavies. Also - there is always Stomp attacks.

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 seneschal? The answer is '''no''' The 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. 

Is a top candidate for being a preceptor ''(or being close to one)'' or arbalester, due to getting overwatch and/or skyfire on the bolt cannon. 

Making it an Arbalester is a good option, sure, Tank Hunter is redundant in melee as his sword has Sunder, but having Skyfire on a S7 massive fire-rate weapon that re-rolls failed armour penetration will tear aircraft out of the skies.

https://www.forgeworld.co.uk/resources/fw_site/fw_pdfs/Warhammer_40000/Cerastus_Knight_Castigator.pdf