As an Ork player, Challenges aren't much of a problem for me as most of my characters have a Power klaw or are at least half decent in
CC. But with the wider rules, it seems rather unfair for a couple of reasons:
1. It unfairly penalises codexes/lists who don't have close-combat heroes. Even if you reject the challange it's still a negative.
2. In a rather poetic way, aren't
all models characters when you think about it?
Instead of the Challenge system being a specific buff for
CC lists it can be replaced with Moments of Opportunity.
MoOs (OK, you can suggest a better name for it of you want to) are rare single-use buffs that you can use throughout your army. They represent fleeting openings in the fog of war where through luck or good leadership even the lowliest of soldiers can turn the tide of battle should be he lucky enough.
You can use
MoOs on ANY model to:
Make a Challenge
Give the model the Marksman rule (firing at a model of the shooting side's choosing) for one turn only.
Improve (or re-roll?) Reserve rolls.
Re-roll a leadership test.
Each
MoO can only be used once and is lost after the selected model has used it, even if it was a Challenge which was rejected. Armies gain
MoOs at the start of the battle based on how many
HQ units they have and if any of those
HQ units are Unique. For example, an Ork list with 1 Warboss and 1 Ghazghkull Thraka has 3
MoOs as the list contains 2
HQ units, one of which is Unique.
Note that while the
HQ units gain
MoOs, any model in the army may make use of them. Models with Heavy weapons (including vehicles) can only use Marksman with one weapon and it snapfires.
Playing devil's advocate, I'd say that the one problem I have with
MoOs from a narrative point of view is that it makes the models feel rather stupid. They're supposed to be doing these smart things all the time but they're normally lost in the abstract nature of the game so you don't normally see them. Putting special moments into the rules makes all the other moments feel bland by comparison; in a similar way to how adding campeign veterancy to Veterans of the Long War doesn't really make sense.
Guardsmen using a
MoO to attack an Ork Nob.