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diff --git a/game/server/ai_behavior_assault.h b/game/server/ai_behavior_assault.h
new file mode 100644
index 0000000..e927def
--- /dev/null
+++ b/game/server/ai_behavior_assault.h
@@ -0,0 +1,299 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef AI_BEHAVIOR_ASSAULT_H
+#define AI_BEHAVIOR_ASSAULT_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "simtimer.h"
+#include "ai_behavior.h"
+#include "ai_goalentity.h"
+#include "ai_moveshoot.h"
+#include "ai_utils.h"
+
+#define CUE_POINT_TOLERANCE (3.0*12.0)
+
+enum RallySelectMethod_t
+{
+	RALLY_POINT_SELECT_DEFAULT = 0,
+	RALLY_POINT_SELECT_RANDOM,
+};
+
+enum AssaultCue_t
+{
+	CUE_NO_ASSAULT = 0,	// used to indicate that no assault is being conducted presently
+
+	CUE_ENTITY_INPUT = 1,
+	CUE_PLAYER_GUNFIRE,
+	CUE_DONT_WAIT,
+	CUE_COMMANDER,
+	CUE_NONE,
+};
+
+enum
+{
+	ASSAULT_SENTENCE_HIT_RALLY_POINT = SENTENCE_BASE_BEHAVIOR_INDEX,
+	ASSAULT_SENTENCE_HIT_ASSAULT_POINT,
+	ASSAULT_SENTENCE_SQUAD_ADVANCE_TO_RALLY,
+	ASSAULT_SENTENCE_SQUAD_ADVANCE_TO_ASSAULT,
+	ASSAULT_SENTENCE_COVER_NO_AMMO,
+	ASSAULT_SENTENCE_UNDER_ATTACK,
+};
+
+// Allow diversion from the assault up to this amount of time after last having an enemy
+#define ASSAULT_DIVERSION_TIME		4
+
+#define SF_ASSAULTPOINT_CLEARONARRIVAL	0x00000001
+
+//=============================================================================
+//=============================================================================
+class CRallyPoint : public CPointEntity 
+{
+	DECLARE_CLASS( CRallyPoint, CPointEntity );
+
+public:
+	CRallyPoint()
+	{
+		m_hLockedBy.Set(NULL);
+		m_sExclusivity = RALLY_EXCLUSIVE_NOT_EVALUATED;
+	}
+
+	bool Lock( CBaseEntity *pLocker )
+	{
+		if( IsLocked() )
+		{
+			// Already locked.
+			return false;
+		}
+
+		m_hLockedBy.Set( pLocker );
+		return true;
+	}
+
+	bool Unlock( CBaseEntity *pUnlocker )
+	{
+		if( IsLocked() )
+		{
+			if( m_hLockedBy.Get() != pUnlocker )
+			{
+				// Refuse! Only the locker may unlock.
+				return false;
+			}
+		}
+
+		m_hLockedBy.Set( NULL );
+		return true;
+	}
+
+	bool IsLocked( void ) { return (m_hLockedBy.Get() != NULL); }
+
+	int DrawDebugTextOverlays();
+	bool IsExclusive();
+
+	enum
+	{
+		RALLY_EXCLUSIVE_NOT_EVALUATED = -1,
+		RALLY_EXCLUSIVE_NO,
+		RALLY_EXCLUSIVE_YES,
+	};
+
+	string_t	m_AssaultPointName;
+	string_t	m_RallySequenceName;
+	float		m_flAssaultDelay;
+	int			m_iPriority;
+	int			m_iStrictness;
+	bool		m_bForceCrouch;
+	bool		m_bIsUrgent;
+	short		m_sExclusivity;
+
+	COutputEvent	m_OnArrival;
+
+	DECLARE_DATADESC();
+
+private:
+	EHANDLE		m_hLockedBy;
+};
+
+//=============================================================================
+//=============================================================================
+class CAssaultPoint : public CPointEntity 
+{
+	DECLARE_CLASS( CAssaultPoint, CPointEntity );
+
+public:
+	CAssaultPoint()
+	{
+		// This used to be a constant in code. Now it's a keyfield in hammer. 
+		// So in the constructor, we set this value to the former constant
+		// default value, for legacy maps. (sjb)
+		m_flAssaultPointTolerance = CUE_POINT_TOLERANCE;
+	}
+
+	void 			InputSetClearOnContact( inputdata_t &inputdata )
+	{
+		m_bClearOnContact = inputdata.value.Bool();
+	}
+
+	void 			InputSetAllowDiversion( inputdata_t &inputdata )
+	{
+		m_bAllowDiversion = inputdata.value.Bool();
+	}
+
+	void 			InputSetForceClear( inputdata_t &inputdata )
+	{
+		m_bInputForcedClear = inputdata.value.Bool();
+	}
+
+public:
+	string_t		m_AssaultHintGroup;
+	string_t		m_NextAssaultPointName;
+	COutputEvent	m_OnAssaultClear;
+	float			m_flAssaultTimeout;
+	bool			m_bClearOnContact;
+	bool			m_bAllowDiversion;
+	float			m_flAllowDiversionRadius;
+	bool			m_bNeverTimeout;
+	int				m_iStrictness;
+	bool			m_bForceCrouch;
+	bool			m_bIsUrgent;
+	bool			m_bInputForcedClear;
+	float			m_flAssaultPointTolerance;
+	float			m_flTimeLastUsed;
+
+	COutputEvent	m_OnArrival;
+
+	DECLARE_DATADESC();
+};
+
+//=============================================================================
+//=============================================================================
+class CAI_AssaultBehavior : public CAI_SimpleBehavior
+{
+	DECLARE_CLASS( CAI_AssaultBehavior, CAI_SimpleBehavior );
+
+public:
+	CAI_AssaultBehavior();
+	
+	virtual const char *GetName() {	return "Assault"; }
+	virtual int	DrawDebugTextOverlays( int text_offset );
+
+	virtual void OnRestore();
+
+	bool CanRunAScriptedNPCInteraction( bool bForced );
+
+	virtual bool 	CanSelectSchedule();
+	virtual void	BeginScheduleSelection();
+	virtual void	EndScheduleSelection();
+	
+	bool HasHitRallyPoint() { return m_bHitRallyPoint; }
+	bool HasHitAssaultPoint() { return m_bHitAssaultPoint; }
+
+	void ClearAssaultPoint( void );
+	void OnHitAssaultPoint( void );
+	bool PollAssaultCue( void );
+	void ReceiveAssaultCue( AssaultCue_t cue );
+	bool HasAssaultCue( void ) { return m_AssaultCue != CUE_NO_ASSAULT; }
+	bool AssaultHasBegun();
+
+	CAssaultPoint *FindAssaultPoint( string_t iszAssaultPointName );
+	void SetAssaultPoint( CAssaultPoint *pAssaultPoint );
+
+	void GatherConditions( void );
+	void StartTask( const Task_t *pTask );
+	void RunTask( const Task_t *pTask );
+	void BuildScheduleTestBits();
+	int TranslateSchedule( int scheduleType );
+	void OnStartSchedule( int scheduleType );
+	void ClearSchedule( const char *szReason );
+
+	void InitializeBehavior();
+	void SetParameters( string_t rallypointname, AssaultCue_t assaultcue, int rallySelectMethod );
+	void SetParameters( CBaseEntity *pRallyEnt, AssaultCue_t assaultcue );
+
+	bool IsAllowedToDivert( void );
+	bool IsValidShootPosition( const Vector &vLocation, CAI_Node *pNode, CAI_Hint const *pHint );
+	float GetMaxTacticalLateralMovement( void );
+
+	void UpdateOnRemove();
+
+	bool OnStrictAssault( void	);
+	bool UpdateForceCrouch( void );
+	bool IsForcingCrouch( void );
+	bool IsUrgent( void );
+
+	CRallyPoint *FindBestRallyPointInRadius( const Vector &vecCenter, float flRadius );;
+
+	void Disable( void ) { m_AssaultCue = CUE_NO_ASSAULT; m_bHitRallyPoint = false; m_bHitAssaultPoint = false; }
+
+	enum
+	{
+		SCHED_MOVE_TO_RALLY_POINT = BaseClass::NEXT_SCHEDULE,		// Try to get out of the player's way
+		SCHED_ASSAULT_FAILED_TO_MOVE,
+		SCHED_FAIL_MOVE_TO_RALLY_POINT,
+		SCHED_MOVE_TO_ASSAULT_POINT,
+		SCHED_AT_ASSAULT_POINT,
+		SCHED_HOLD_RALLY_POINT,
+		SCHED_HOLD_ASSAULT_POINT,
+		SCHED_WAIT_AND_CLEAR,
+		SCHED_ASSAULT_MOVE_AWAY,
+		SCHED_CLEAR_ASSAULT_POINT,
+		NEXT_SCHEDULE,
+
+		TASK_GET_PATH_TO_RALLY_POINT = BaseClass::NEXT_TASK,
+		TASK_FACE_RALLY_POINT,
+		TASK_GET_PATH_TO_ASSAULT_POINT,
+		TASK_FACE_ASSAULT_POINT,
+		TASK_HIT_ASSAULT_POINT,
+		TASK_HIT_RALLY_POINT,
+		TASK_AWAIT_CUE,
+		TASK_AWAIT_ASSAULT_TIMEOUT,
+		TASK_ANNOUNCE_CLEAR,
+		TASK_WAIT_ASSAULT_DELAY,
+		TASK_ASSAULT_MOVE_AWAY_PATH,
+		TASK_ASSAULT_DEFER_SCHEDULE_SELECTION,
+		NEXT_TASK,
+
+/*
+		COND_PUT_CONDITIONS_HERE = BaseClass::NEXT_CONDITION,
+		NEXT_CONDITION,
+*/
+	};
+
+	DEFINE_CUSTOM_SCHEDULE_PROVIDER;
+
+public:
+	CHandle<CAssaultPoint> m_hAssaultPoint;
+	CHandle<CRallyPoint> m_hRallyPoint;
+
+public:
+	void			UnlockRallyPoint( void );
+
+private:
+	void			OnScheduleChange();
+	virtual int		SelectSchedule();
+
+	AssaultCue_t	m_AssaultCue;			// the cue we're waiting for to begin the assault
+	AssaultCue_t	m_ReceivedAssaultCue;	// the last assault cue we received from someone/thing external.
+
+	bool			m_bHitRallyPoint;
+	bool			m_bHitAssaultPoint;
+
+	// Diversion
+	bool			m_bDiverting;
+	float			m_flLastSawAnEnemyAt;
+
+	float			m_flTimeDeferScheduleSelection;
+
+	string_t		m_AssaultPointName;
+
+	//---------------------------------
+	
+	DECLARE_DATADESC();
+};
+
+#endif // AI_BEHAVIOR_ASSAULT_H