I think a very important point regarding VS discipline should be the following:
VS are not a rambling horde unwilling to follow orders. VS can be very disciplined when it comes to coordinated behaviour. They have a very good sense of how to act as a community, as a machine combined of myraids of small gears. Everyone knows it's place and they can very fast react as a group.
This is a significant difference to OnG.
Orcs and Goblins are all very individualistic. They all try to be the first, try to achieve the best for themselves. They often stand in each other's way. They have coordination problems. Orcs might be brave, not afraid to die, even fight in a bad situation as long as it is a good clash.
Vermin might be cowards. When there is a severe threat (lose a close combat, face a dragon, being bombed out) they suddenly all lose their confidence. They all flee simultaneously, just Iike they do everything simultaneously. They are not brave, but they are coordinated.
I think Vermin don't need excessively high Dis for fear, panic and break (the current 10 should not be reachable, maybe not even 9). But they should be good when it comes to the other situations where dis tests are required. Redirecting charge, combat reform, restrain overrun etc.
Not sure how to exactly put that into rules. There are two basic options:
a) Have high Dis, but have malus in tests related to being brave.
b) Have Low Dis, but have bonus in tests not related to being brave.
"Not brave but co-ordinated" is a really fascinating thing that could be explored in many ways. Very cool
Does this capture what a majority of players feel about VS compared to e.g. goblins?
I have a follow up question:
"Sneakiness" is an attribute that is talked about in regards to goblins and vermin swarm (amongst others).
On top of that there are things like BH, where ambush and attacking flanks/rears is explicitly part of the mechanics.
Perhaps the differences between these armies in this regard could be elucidated as well (like the discipline example above)?
I'd be fascinated to hear how people see the differences between different armies in this regard.