diff --git a/src/simulator/crates/mc-combat/src/resolver.rs b/src/simulator/crates/mc-combat/src/resolver.rs
index 9e315f71..addc0e3d 100644
--- a/src/simulator/crates/mc-combat/src/resolver.rs
+++ b/src/simulator/crates/mc-combat/src/resolver.rs
@@ -403,8 +403,14 @@ impl CombatResolver {
                 let city_dmg = (damage_to_defender as f32 * siege_mult).round() as i32;
                 (city_dmg, (city_hp - city_dmg).max(0))
             } else {
-                // Melee vs city: damage goes to city HP
-                (damage_to_defender, (city_hp - damage_to_defender).max(0))
+                // Melee vs city: only a fraction of unit damage translates to
+                // city structural HP. Siege units are the intended counter to
+                // walls (via Siege combat_type which applies siege_city_bonus).
+                // Halves the effectiveness of warrior-rush captures that were
+                // breaking T99/T106 wins in prior batches.
+                let melee_city_fraction: f32 = 0.50;
+                let city_dmg = (damage_to_defender as f32 * melee_city_fraction).round() as i32;
+                (city_dmg, (city_hp - city_dmg).max(0))
             }
         } else {
             (0, 0)