[quote=@Wernher]
What I suggest: Cavalry goes to drop archers to harass Greens while dividing our troops in two, one seemingly going to meet the greens while the other one turns around, drops its pants and taunt the nightfell like there's no tomorrow into rushing in. If they do, flank them with the group facing Green. If the greens ignore the skirmishers and charge despite the arrow rain, charge in their rear while they engage.

If the Nightfell don't take the bait, regroup in a line and either: try to shift the flank to force Nightfell and greens to fight together (something I guess they are not used to) or lure in Nightfell by having the center loosing and falling back so the flanks can encircle them, again, using the cavalry as a threat to prevent Greens from charging or at least, from dedicating all their forces.

Eliz's personal main priority: Conserve the horse's energy as much as possible to run over the Greens once they flee, inflict maximum casualties. FOR URAK! 
[/quote]

That plan seems good, BUT we have to remember Urlandi culture. We do not fight to kill, we will route them then counter attack after our men have replenished.