Add Xiakou pursuit scenario

README.md

@@ -4,7 +4,7 @@ Godot 4 tactical RPG prototype inspired by classic turn-based Romance of the Thr
 
 ## Current Slice
 
-- Twenty-seven campaign scenarios.
+- Twenty-eight campaign scenarios.
 - Grid movement.
 - Unit selection.
 - Move, attack, wait, end turn.
@@ -48,6 +48,7 @@ Godot 4 tactical RPG prototype inspired by classic turn-based Romance of the Thr
 - Xinye Advance consumes the Liaodong Pursuit branch flags and opens Cao Cao's southern advance into Jing Province.
 - Changban Pursuit consumes the Xinye Advance branch flags and forces Liu Bei's bridge guard at Changban.
 - Jiangling Chase consumes the Changban Pursuit branch flags and seizes Jing Province's river storehouses.
+- Xiakou Pursuit consumes the Jiangling Chase branch flags and pushes the river campaign toward Red Cliffs.
 - Post-battle choices can save campaign flags that branch later briefing text, shop stock, and scenario events.
 - Scenario post-battle dialogue can play before the victory result panel.
 - Basic battle EXP, level-ups, and core first-tier class promotion routes.