Agreed.
The current World Eaters is see as several bunches of Warbands scattered in the Eye of Terror butchering every non-Warband member they can find unless someone can point them at a more juicier targed than to butcher a few tousand helpless civilians or carving in their heads against an opponent they know they can't beat on their own.
The last two exceptions is where we come to Epic. A mighty Chaos Champion (here a Champion of the World Eaters) has conviced several Warbands to fight for him once more to defeat a (common) foe and/or reach a certain objective for the greater glory of Khorne.
Each Warband will be a core of World Eater Khorne Berzerkers (some with specialities like Jump Packs or being Possessed)with several followers and equipment in support. This could be Cultists, Bloodgors, Armoured Vehicles, Daemon Engines and Titans (perhabs in this order).
As followers of Khorne the supporting troops will prefer close combat and naturally be very good in it. Even vehicles would prefer some close combat equipment over shooting stuff. IF followers of Khorne use shooting stuff it tend to be handy in close quarters (pistols of any kind) or if far ranged to be quite devastating (spectaculary so).
Yes this sounds alot like Orks and in somekind of way they chare the same mindset.
The differenc eis that World Eaters ar e muchmore better marksmen thanOrks and that while Orks only have fun chopping up bits follower of Khorne not only have fun doing this they do it with zeal. A murderous zeal which puts almost all in a frenzy once cought in close quarters with their foe. While ordinary Khornates can "ride the wave of frenzy" (thats have unbelievable ragebut can control it somewhat) the Berzerkers of the World Eaters can't and won't do this even if they could. Once actual hand-to-hand combat starts they just snap and will fight until there is no one left to fight or being killed.
I guess they are still able to recognise their own kin and if they only see other fellow World Eaters (not nessesarily other Khornates which they could see as inferior and thus as new victims) they will come to their senses and will seek new victims/challenges.
On top of this frenzy the World Eaters simply don't fear death. They know Khorne will claim them one way or the other. So long as their death is violent they don't fear it. So in an AssaultinEpic which is essentiall y a whole game of Wh40k youwill see World Eaters Berzerkers in hand-to-hand combat which willfight until they are dead or no enemy left or World Eater Berzerkers outsideof hand-to-hand combat but still engaged with the enemy who just will refuse to flee until actually ordered so.
So World Eaters can act highly disciplined but the moment you give them free rein they will be entangled in hand-to-hand combat and then you can only pray that they will win so that you can give them new orders or else your army will be dead.
Other Khornates are a different matter because they KNOW fear and will run from combat if they feelthey can't win. On Actual hand-to-hand combat it might be different because they have lost their mind to a battle frenzy which only lack of enemies or their own death will stop them.
Daemons are another matter too. Because YOU were able to summon a Bloodthirster to your command he WILL obey you if you order him to stop butchering some foes so that you give him new orders to attack some victims you percieve as more valuable (he might be pissed at you but he will obey nonetheless). As a Khornate you won't call it magic but well...summoning and binding daemons to your will is
Wow. That was along posting.