One combat round always resolves every attack from your selected loadouts. If the defender is wiped before the last attack, the simulator still rolls the remaining attacks (for averages below and for total damage, which can include “into the void” after no wounded models remain). Models killed and wipe probability are based on models actually destroyed.
Total damage = sum of all wounds dealt in one round (including overkill). Wiped when damage ≥ the target’s total wounds (e.g. 5 models × 3 W = 15). P(wipe unit) = fraction of runs where damage met or exceeded that amount.
Damage (pts) converts mean damage into “models worth” (mean damage ÷ W per model), then multiplies by points per model (unit points ÷ minimum squad size). Efficiency uses a capped points-damage value (capped at the selected target models’ total points) divided by the total list points of your attacker units.
Models chart: first colour = below wiping the full defender unit; second colour = full wipe or more (same hues as the first two weapon lines on the damage chart). The second colour also covers extra steps from damaging hits after the unit is already gone.