diff --git a/regamedll/dlls/API/CAPI_Impl.cpp b/regamedll/dlls/API/CAPI_Impl.cpp
index 0fe10a490..47532642b 100644
--- a/regamedll/dlls/API/CAPI_Impl.cpp
+++ b/regamedll/dlls/API/CAPI_Impl.cpp
@@ -30,12 +30,15 @@
 
 CReGameHookchains g_ReGameHookchains;
 
-int EXT_FUNC Cmd_Argc_api() {
-	return CMD_ARGC_();
-}
+void Regamedll_ChangeString_api(char *&dest, const char *source)
+{
+	size_t len = Q_strlen(source);
+	if (dest == nullptr || Q_strlen(dest) != len) {
+		delete [] dest;
+		dest = new char [len + 1];
+	}
 
-const char *EXT_FUNC Cmd_Argv_api(int i) {
-	return CMD_ARGV_(i);
+	Q_strcpy(dest, source);
 }
 
 CGrenade *PlantBomb_api(entvars_t *pevOwner, Vector &vecStart, Vector &vecVelocity) {
@@ -51,22 +54,22 @@ void SpawnRandomGibs_api(entvars_t *pevVictim, int cGibs, int human) {
 }
 
 ReGameFuncs_t g_ReGameApiFuncs = {
-	&CREATE_NAMED_ENTITY,
+	CREATE_NAMED_ENTITY,
 
-	&Regamedll_ChangeString_api,
+	Regamedll_ChangeString_api,
 
-	&RadiusDamage_api,
-	&ClearMultiDamage_api,
-	&ApplyMultiDamage_api,
-	&AddMultiDamage_api,
+	RadiusDamage,
+	ClearMultiDamage,
+	ApplyMultiDamage,
+	AddMultiDamage,
 
-	&UTIL_FindEntityByString,
+	UTIL_FindEntityByString,
 
-	&AddEntityHashValue,
-	&RemoveEntityHashValue,
+	AddEntityHashValue,
+	RemoveEntityHashValue,
 
-	Cmd_Argc_api,
-	Cmd_Argv_api,
+	CMD_ARGC_,
+	CMD_ARGV_,
 
 	PlantBomb_api,
 
@@ -265,35 +268,4 @@ bool CReGameApi::BGetIGameRules(const char *pchVersion) const
 	return false;
 }
 
-EXT_FUNC void Regamedll_ChangeString_api(char *&dest, const char *source)
-{
-	size_t len = Q_strlen(source);
-	if (dest == nullptr || Q_strlen(dest) != len) {
-		delete [] dest;
-		dest = new char [len + 1];
-	}
-
-	Q_strcpy(dest, source);
-}
-
-EXT_FUNC void RadiusDamage_api(Vector vecSrc, entvars_t *pevInflictor, entvars_t *pevAttacker, float flDamage, float flRadius, int iClassIgnore, int bitsDamageType)
-{
-	RadiusDamage(vecSrc, pevInflictor, pevAttacker, flDamage, flRadius, iClassIgnore, bitsDamageType);
-}
-
-EXT_FUNC void ClearMultiDamage_api()
-{
-	ClearMultiDamage();
-}
-
-EXT_FUNC void ApplyMultiDamage_api(entvars_t *pevInflictor, entvars_t *pevAttacker)
-{
-	ApplyMultiDamage(pevInflictor, pevAttacker);
-}
-
-EXT_FUNC void AddMultiDamage_api(entvars_t *pevInflictor, CBaseEntity *pEntity, float flDamage, int bitsDamageType)
-{
-	AddMultiDamage(pevInflictor, pEntity, flDamage, bitsDamageType);
-}
-
 EXPOSE_SINGLE_INTERFACE(CReGameApi, IReGameApi, VRE_GAMEDLL_API_VERSION);
diff --git a/regamedll/dlls/API/CAPI_Impl.h b/regamedll/dlls/API/CAPI_Impl.h
index 1be3dd232..311f612ed 100644
--- a/regamedll/dlls/API/CAPI_Impl.h
+++ b/regamedll/dlls/API/CAPI_Impl.h
@@ -906,8 +906,8 @@ class CReGameHookchains: public IReGameHookchains {
 	virtual IReGameHookRegistry_CBasePlayer_JoiningThink *CBasePlayer_JoiningThink();
 };
 
-extern CReGameHookchains g_ReGameHookchains;
-extern ReGameFuncs_t g_ReGameApiFuncs;
+C_DLLEXPORT CReGameHookchains g_ReGameHookchains;
+C_DLLEXPORT ReGameFuncs_t g_ReGameApiFuncs;
 
 class CReGameApi: public IReGameApi {
 public:
@@ -930,10 +930,3 @@ class CReGameApi: public IReGameApi {
 	EXT_FUNC virtual bool BGetICSEntity(const char *pchVersion) const;
 	EXT_FUNC virtual bool BGetIGameRules(const char *pchVersion) const;
 };
-
-void Regamedll_ChangeString_api(char *&dest, const char *source);
-void RadiusDamage_api(Vector vecSrc, entvars_t *pevInflictor, entvars_t *pevAttacker, float flDamage, float flRadius, int iClassIgnore, int bitsDamageType);
-
-void ClearMultiDamage_api();
-void ApplyMultiDamage_api(entvars_t *pevInflictor, entvars_t *pevAttacker);
-void AddMultiDamage_api(entvars_t *pevInflictor, CBaseEntity *pEntity, float flDamage, int bitsDamageType);
diff --git a/regamedll/dlls/client.cpp b/regamedll/dlls/client.cpp
index 5ddf63adb..3d79df07c 100644
--- a/regamedll/dlls/client.cpp
+++ b/regamedll/dlls/client.cpp
@@ -753,7 +753,11 @@ void Host_Say(edict_t *pEntity, BOOL teamonly)
 {
 	int j;
 	char *p;
+#ifdef REGAMEDLL_FIXES
+	char text[140];
+#else
 	char text[128];
+#endif
 	char szTemp[256];
 	const char *cpSay = "say";
 	const char *cpSayTeam = "say_team";
diff --git a/regamedll/dlls/func_tank.cpp b/regamedll/dlls/func_tank.cpp
index 1ca0e966e..acb772d1b 100644
--- a/regamedll/dlls/func_tank.cpp
+++ b/regamedll/dlls/func_tank.cpp
@@ -208,8 +208,12 @@ BOOL CFuncTank::OnControls(entvars_t *pevTest)
 	if (!(pev->spawnflags & SF_TANK_CANCONTROL))
 		return FALSE;
 
+#ifdef REGAMEDLL_FIXES
+	if((pev->origin - pevTest->origin).Length() < (m_vecControllerUsePos.x + m_vecControllerUsePos.y))
+#else
 	Vector offset = pevTest->origin - pev->origin;
 	if ((m_vecControllerUsePos - pevTest->origin).Length() < 30.0f)
+#endif
 	{
 		return TRUE;
 	}
@@ -254,7 +258,12 @@ BOOL CFuncTank::StartControl(CBasePlayer *pController)
 	}
 
 	m_pController->m_iHideHUD |= HIDEHUD_WEAPONS;
+#ifdef REGAMEDLL_FIXES
+	m_vecControllerUsePos.x = (pev->origin - m_pController->pev->origin).Length();
+	m_vecControllerUsePos.y = MAX_PLAYER_USE_TANK_RADIUS;
+#else
 	m_vecControllerUsePos = m_pController->pev->origin;
+#endif
 
 	pev->nextthink = pev->ltime + 0.1f;
 
@@ -876,6 +885,25 @@ void CFuncTankControls::Use(CBaseEntity *pActivator, CBaseEntity *pCaller, USE_T
 	if (m_pTank)
 	{
 		m_pTank->Use(pActivator, pCaller, useType, value);
+
+#ifdef REGAMEDLL_FIXES
+		m_pTank->m_vecControllerUsePos.x = (m_pTank->pev->origin - pActivator->pev->origin).Length();
+
+		// Extended distance setting, up to "MAX_PLAYER_USE_TANK_RADIUS" units or more depending on how close we were in "PlayerUse", or if we did not used it.
+		if(pActivator && pActivator->IsPlayer() && (((CBasePlayer *)pActivator)->m_afButtonPressed & IN_USE))
+		{
+			m_pTank->m_vecControllerUsePos.y = MAX_PLAYER_USE_RADIUS - (this->Center() - pActivator->pev->origin).Length();
+
+			if(m_pTank->m_vecControllerUsePos.y < 0) // Since radius function can get and higher range, so fix it to avoid "StartControl" followed by "StopControl" on a next think!
+			{
+				m_pTank->m_vecControllerUsePos.y = -m_pTank->m_vecControllerUsePos.y;
+			}
+		}
+		else
+		{
+			m_pTank->m_vecControllerUsePos.y = MAX_PLAYER_USE_TANK_RADIUS;
+		}
+#endif
 	}
 
 	// if this fails,  most likely means save/restore hasn't worked properly
diff --git a/regamedll/dlls/func_tank.h b/regamedll/dlls/func_tank.h
index d30acdb7a..d93e6b330 100644
--- a/regamedll/dlls/func_tank.h
+++ b/regamedll/dlls/func_tank.h
@@ -105,6 +105,10 @@ class CFuncTank: public CBaseEntity
 	static Vector m_TankSpread[];
 
 protected:
+#ifdef REGAMEDLL_FIXES
+	friend class CFuncTankControls;
+#endif
+
 	CBasePlayer *m_pController;
 	float m_flNextAttack;
 	Vector m_vecControllerUsePos;
diff --git a/regamedll/dlls/player.cpp b/regamedll/dlls/player.cpp
index c48545051..c5cd27a45 100644
--- a/regamedll/dlls/player.cpp
+++ b/regamedll/dlls/player.cpp
@@ -4005,6 +4005,11 @@ void CBasePlayer::PlayerUse()
 	if (!((pev->button | m_afButtonPressed | m_afButtonReleased) & IN_USE))
 		return;
 
+#ifdef REGAMEDLL_FIXES
+	if (IsReloading())
+		return;
+#endif
+
 	// Hit Use on a train?
 	if (m_afButtonPressed & IN_USE)
 	{
@@ -5040,6 +5045,11 @@ void EXT_FUNC CBasePlayer::__API_HOOK(PostThink)()
 		}
 	}
 
+#ifdef REGAMEDLL_FIXES
+	// Handle use events
+	PlayerUse();
+	ImpulseCommands();
+#endif
 	// do weapon stuff
 	ItemPostFrame();
 
@@ -6296,8 +6306,10 @@ void EXT_FUNC CBasePlayer::__API_HOOK(ImpulseCommands)()
 {
 	TraceResult tr;
 
+#ifndef REGAMEDLL_FIXES
 	// Handle use events
 	PlayerUse();
+#endif
 
 	int iImpulse = pev->impulse;
 
@@ -6915,7 +6927,9 @@ void CBasePlayer::ItemPostFrame()
 #endif
 		return;
 
+#ifndef REGAMEDLL_FIXES
 	ImpulseCommands();
+#endif
 
 	if (m_pActiveItem)
 		m_pActiveItem->ItemPostFrame();
@@ -6923,7 +6937,7 @@ void CBasePlayer::ItemPostFrame()
 
 int CBasePlayer::AmmoInventory(int iAmmoIndex)
 {
-	if (iAmmoIndex == -1)
+	if (iAmmoIndex <= -1)
 		return -1;
 
 	return m_rgAmmo[iAmmoIndex];
diff --git a/regamedll/dlls/player.h b/regamedll/dlls/player.h
index e62c1b730..54c341fca 100644
--- a/regamedll/dlls/player.h
+++ b/regamedll/dlls/player.h
@@ -61,6 +61,7 @@ const float SUIT_FIRST_UPDATE_TIME  = 0.1f;
 const float MAX_PLAYER_FATAL_FALL_SPEED = 1100.0f;
 const float MAX_PLAYER_SAFE_FALL_SPEED  = 500.0f;
 const float MAX_PLAYER_USE_RADIUS       = 64.0f;
+const float MAX_PLAYER_USE_TANK_RADIUS  = 30.0f;
 
 const float ARMOR_RATIO = 0.5f;			// Armor Takes 50% of the damage
 const float ARMOR_BONUS = 0.5f;			// Each Point of Armor is work 1/x points of health
diff --git a/regamedll/dlls/weapons.cpp b/regamedll/dlls/weapons.cpp
index 22d61fc9f..57b5afaf5 100644
--- a/regamedll/dlls/weapons.cpp
+++ b/regamedll/dlls/weapons.cpp
@@ -1108,10 +1108,12 @@ void CBasePlayerItem::DestroyItem()
 {
 	if (m_pPlayer)
 	{
+#ifdef REGAMEDLL_FIXES
+		bool bShouldCallGetNextBestWeapon = (this == m_pPlayer->m_pActiveItem);
+#endif
 		// if attached to a player, remove.
 		if (m_pPlayer->RemovePlayerItem(this))
 		{
-
 #ifdef REGAMEDLL_FIXES
 			m_pPlayer->pev->weapons &= ~(1 << m_iId);
 
@@ -1119,9 +1121,18 @@ void CBasePlayerItem::DestroyItem()
 			if ((m_pPlayer->pev->weapons & ~(1 << WEAPON_SUIT)) == 0) {
 				m_pPlayer->m_iHideHUD |= HIDEHUD_WEAPONS;
 			}
+			// Helps to fix problem when we throw our last grenade right before using a tank (< 0.5 seconds) and when we unuse it,
+			// we no longer have an active item and we are unable to select another via mouse wheel.
+			else if(bShouldCallGetNextBestWeapon)
+			{
+				g_pGameRules->GetNextBestWeapon(m_pPlayer, this);
+			}
 #endif
-
 		}
+#ifdef REGAMEDLL_FIXES
+		else if(!(pev->flags & FL_KILLME)) // Do not kill the item when unable to unhook from player's inventory (as if we manually refused this).
+			return;
+#endif
 	}
 
 	Kill();