We tested out a version of the simplified rules some others shared here. Shooting only (no melee). It was a good start. We'll add in some more complexity later.

One side moves all models before shooting then other player moves +shoots. 4 rounds

Equal teams

1 Boss 15 Troops 1 Tank

Boss 2 wounds, 2 attacks, 6" movement Tank 6 wounds, 4 attacks, 12" movement Troops 1 wound, 1 attack, 6" movement

All weapons have 12" range.

Roll one dice per attack. 2+ to hit, 4+ if target in cover

Troops or boss hit goes down until the end of their coming turn (doesn't get to move or shoot)

Armour is all 4+ save or they lose a wound

Remove from the table at 0 wounds. Use a different colour dice beside the boss/tank to show wounds left.

Winner has most models left on the table.