diff --git a/sp/src/game/server/ai_activity.cpp b/sp/src/game/server/ai_activity.cpp
index f62e38db..02afb3b7 100644
--- a/sp/src/game/server/ai_activity.cpp
+++ b/sp/src/game/server/ai_activity.cpp
@@ -2272,6 +2272,9 @@ void CAI_BaseNPC::InitDefaultActivitySR(void)
 	ADD_ACTIVITY_TO_SR( ACT_RANGE_ATTACK_RPG_LOW );
 	ADD_ACTIVITY_TO_SR( ACT_GESTURE_RANGE_ATTACK_RPG );
 
+	ADD_ACTIVITY_TO_SR( ACT_WALK_MELEE );
+	ADD_ACTIVITY_TO_SR( ACT_RUN_MELEE );
+
 	ADD_ACTIVITY_TO_SR( ACT_RUN_PACKAGE );
 	ADD_ACTIVITY_TO_SR( ACT_RUN_SUITCASE );
 
diff --git a/sp/src/game/server/hl2/weapon_crowbar.cpp b/sp/src/game/server/hl2/weapon_crowbar.cpp
index 1a6488c2..8a0daacf 100644
--- a/sp/src/game/server/hl2/weapon_crowbar.cpp
+++ b/sp/src/game/server/hl2/weapon_crowbar.cpp
@@ -43,9 +43,8 @@ acttable_t CWeaponCrowbar::m_acttable[] =
 	{ ACT_IDLE,				ACT_IDLE_ANGRY_MELEE,	false },
 	{ ACT_IDLE_ANGRY,		ACT_IDLE_ANGRY_MELEE,	false },
 #ifdef EXPANDED_HL2_WEAPON_ACTIVITIES
-	// Just so we don't have to implement more activities, re-use the MP acts
-	{ ACT_RUN,				ACT_MP_RUN_MELEE,		false },
-	{ ACT_WALK,				ACT_MP_WALK_MELEE,		false },
+	{ ACT_RUN,				ACT_RUN_MELEE,			false },
+	{ ACT_WALK,				ACT_WALK_MELEE,			false },
 
 	{ ACT_ARM,				ACT_ARM_MELEE,			false },
 	{ ACT_DISARM,			ACT_DISARM_MELEE,		false },
diff --git a/sp/src/game/shared/activitylist.cpp b/sp/src/game/shared/activitylist.cpp
index 95ff2144..ecee2eee 100644
--- a/sp/src/game/shared/activitylist.cpp
+++ b/sp/src/game/shared/activitylist.cpp
@@ -2388,6 +2388,9 @@ void ActivityList_RegisterSharedActivities( void )
 	REGISTER_SHARED_ACTIVITY( ACT_RANGE_ATTACK_RPG_LOW );
 	REGISTER_SHARED_ACTIVITY( ACT_GESTURE_RANGE_ATTACK_RPG );
 
+	REGISTER_SHARED_ACTIVITY( ACT_WALK_MELEE );
+	REGISTER_SHARED_ACTIVITY( ACT_RUN_MELEE );
+
 	REGISTER_SHARED_ACTIVITY( ACT_RUN_PACKAGE );
 	REGISTER_SHARED_ACTIVITY( ACT_RUN_SUITCASE );
 
diff --git a/sp/src/game/shared/ai_activity.h b/sp/src/game/shared/ai_activity.h
index 11845787..ad39c548 100644
--- a/sp/src/game/shared/ai_activity.h
+++ b/sp/src/game/shared/ai_activity.h
@@ -2267,6 +2267,10 @@ typedef enum
 	ACT_RANGE_ATTACK_RPG_LOW,
 	ACT_GESTURE_RANGE_ATTACK_RPG,
 
+	// Melee
+	ACT_WALK_MELEE,
+	ACT_RUN_MELEE,
+
 	// Citizen accessories
 	ACT_RUN_PACKAGE,
 	ACT_RUN_SUITCASE,
diff --git a/sp/src/game/shared/hl2mp/weapon_stunstick.cpp b/sp/src/game/shared/hl2mp/weapon_stunstick.cpp
index 0884153e..992bd036 100644
--- a/sp/src/game/shared/hl2mp/weapon_stunstick.cpp
+++ b/sp/src/game/shared/hl2mp/weapon_stunstick.cpp
@@ -82,10 +82,9 @@ acttable_t	CWeaponStunStick::m_acttable[] =
 	{ ACT_MELEE_ATTACK1,				ACT_MELEE_ATTACK_SWING,	true },
 	{ ACT_IDLE_ANGRY,					ACT_IDLE_ANGRY_MELEE,	true },
 #ifdef EXPANDED_HL2_WEAPON_ACTIVITIES
-	// Just so we don't have to implement more activities, re-use the MP acts
-	{ ACT_IDLE,							ACT_MP_STAND_MELEE,		false },
-	{ ACT_RUN,							ACT_MP_RUN_MELEE,		false },
-	{ ACT_WALK,							ACT_MP_WALK_MELEE,		false },
+	{ ACT_IDLE,							ACT_IDLE_MELEE,		false },
+	{ ACT_RUN,							ACT_RUN_MELEE,		false },
+	{ ACT_WALK,							ACT_WALK_MELEE,		false },
 #endif
 };