i know we have talked a little bit about formations before, but i want to throw in my 2 cents. in my opinion formations should be part of the tactical battles, mainly because there should be something that sets apart training a party vs training a company, they would just operate differently. nothing complex, just simple increases in stats for units.
single units:
single units would get a bonus to their movement, because they don't have a formation. these are commando units that can move freely and quickly on a battlefield. a speed bonus of + 2 would suffice.
Party:
a party is 4 units i believe. these are mobile squad style units, they are fast and precise. they should get a bonus of +1 to movement and a bonus of +1 to attack VS single units. because it would be hard for 1 guy to fight 4 people at once, very distracting.
company's, platoons and whatever is bigger than that:
these units are considered fielded units and don't get any bonuses VS other types. the main difference here is the formations they can form. these formation can be changed anytime as long as a champion is present(gotta have someone to give the orders). the following are the types of formations.
Wedge: this formation is all about splitting the army up the middle, so attack is increased by +2, and defense is decreased by 1.
Line: this formation is for blocking forward movement, so defense is increased by +3, movement is decreased by 1.
Loose: This formation is all about speed and maneuverability so movement is increased by +2, but defense is decreased by 1 vs melee, +1 vs ranged attacks.
Standard: this formation is the default formation and gives no benefit and no penalty. it is used when there is no champion present.
the point here i think is to create a few simple yet useful formations that can be used tactically to take advantage of the terrain and unit types.