So playing with this idea for a mass combat rule set.
Fantasy war using loose squad rules.
Each squad has a leader model and any number of troops. The leader gets a different base. So a hex or 30mm base.
All los and measurement is done from leader models base to leader base. The only model you measure movement distance for is the leader. Once he is positioned, you can then move his troops to anywhere within 1" of his or another troops base in any formation you like.
Once a leader is in range of an enemy leader, the squads are engaged in combat. You may arrange your troops how you see fit, as it is aesthetic only.
Casualties are removed by owner usually but critical strikes allow enemy to pick off any model- because troops can have special powers such as standard, musician or medic. Once model removed, that ability is lost.
The idea is to get rid of rigid move trays, allow any and all bases and keep game super fast with buckets of minis.
Good idea? Seen it before? Tried it? Let me know in comments below!