diff --git a/dlls/game.cpp b/dlls/game.cpp
index f94b8a0a..8a12355b 100644
--- a/dlls/game.cpp
+++ b/dlls/game.cpp
@@ -54,6 +54,9 @@ cvar_t mp_coop = { "mp_coop", "0", FCVAR_SERVER };
 cvar_t mp_coop_changelevel = { "mp_coop_changelevel", "0", FCVAR_SERVER };
 cvar_t mp_coop_nofriendlyfire = { "mp_coop_nofriendlyfire", "0", FCVAR_SERVER };
 cvar_t mp_coop_disabledmap = { "mp_coop_disabledmap", "", FCVAR_SERVER };
+cvar_t mp_unduck = { "mp_unduck", "0", FCVAR_SERVER };
+cvar_t mp_semclip = { "mp_semclip", "0", FCVAR_SERVER };
+
 // Engine Cvars
 cvar_t *g_psv_gravity = NULL;
 cvar_t *g_psv_aim = NULL;
@@ -499,6 +502,8 @@ void GameDLLInit( void )
 	CVAR_REGISTER( &mp_coop_changelevel );
 	CVAR_REGISTER( &mp_coop_nofriendlyfire );
 	CVAR_REGISTER( &mp_coop_disabledmap );
+	CVAR_REGISTER( &mp_unduck );
+	CVAR_REGISTER( &mp_semclip );
 
 
 	CVAR_REGISTER( &mp_chattime );
diff --git a/dlls/game.h b/dlls/game.h
index f257b27c..8bea381d 100644
--- a/dlls/game.h
+++ b/dlls/game.h
@@ -52,6 +52,9 @@ extern cvar_t mp_coop;
 extern cvar_t mp_coop_changelevel;
 extern cvar_t mp_coop_nofriendlyfire;
 extern cvar_t mp_coop_disabledmap;
+extern cvar_t mp_unduck;
+extern cvar_t mp_semclip;
+extern bool g_fSavedDuck;
 
 // Engine Cvars
 extern cvar_t *g_psv_gravity;
diff --git a/dlls/gamerules.cpp b/dlls/gamerules.cpp
index cca9e4dd..07a01066 100644
--- a/dlls/gamerules.cpp
+++ b/dlls/gamerules.cpp
@@ -69,7 +69,7 @@ Vector FixupSpawnPoint(Vector spawn)
 	{
 		Vector point = spawn + Vector( 0, 0, 36 * i );
 		TraceResult tr;
-		UTIL_TraceHull( point, point, ignore_monsters, 1, NULL, &tr );
+		UTIL_TraceHull( point, point, ignore_monsters, (mp_unduck.value&&g_fSavedDuck)?head_hull:human_hull, NULL, &tr );
 		if( !tr.fStartSolid && !tr.fAllSolid )
 			return point;
 		i = -i;
@@ -98,6 +98,8 @@ edict_t *CGameRules::GetPlayerSpawnSpot( CBasePlayer *pPlayer )
 		CoopGetSpawnPoint( &pPlayer->pev->origin, &pPlayer->pev->angles );
 	pPlayer->pev->fixangle = TRUE;
 	pPlayer->pev->origin = FixupSpawnPoint( pPlayer->pev->origin );
+	if( g_fSavedDuck )
+		pPlayer->pev->flags |= FL_DUCKING;
 
 	return pentSpawnSpot;
 }
diff --git a/dlls/player.cpp b/dlls/player.cpp
index d43db7c4..ae03617c 100644
--- a/dlls/player.cpp
+++ b/dlls/player.cpp
@@ -1849,6 +1849,35 @@ void CBasePlayer::PreThink( void )
 	{
 		pev->velocity = g_vecZero;
 	}
+
+	if( mp_unduck.value )
+	{
+		if( (pev->button & IN_DUCK) && !(pev->button & IN_JUMP) )
+		{
+			TraceResult tr;
+			UTIL_TraceHull( pev->origin, pev->origin, ignore_monsters, human_hull, edict(), &tr );
+			if( tr.fStartSolid )
+			{
+				pev->view_ofs.z = 12;
+				pev->flags |= FL_DUCKING;
+				FixPlayerCrouchStuck(edict());
+				UTIL_SetSize( pev, VEC_DUCK_HULL_MIN, VEC_DUCK_HULL_MAX );
+			}
+		}
+	}
+
+	if( mp_semclip.value )
+	{
+		for( int i = 1; i <= gpGlobals->maxClients; i++ )
+		{
+			CBaseEntity *plr = UTIL_PlayerByIndex( i );
+
+			if( plr && plr->pev->solid == SOLID_SLIDEBOX && plr->IsPlayer() )
+			{
+				plr->pev->solid = SOLID_TRIGGER;
+			}
+		}
+	}
 }
 /* Time based Damage works as follows: 
 	1) There are several types of timebased damage:
@@ -2418,6 +2447,20 @@ void CBasePlayer::PostThink()
 	if( !IsAlive() )
 		goto pt_end;
 
+	if( mp_semclip.value )
+	{
+		for( int i = 1; i < gpGlobals->maxClients; i++ )
+		{
+			CBaseEntity *plr = UTIL_PlayerByIndex( i );
+
+			if( plr && plr->pev->solid == SOLID_TRIGGER && plr->IsPlayer() )
+			{
+				plr->pev->solid = SOLID_SLIDEBOX;
+				UTIL_SetOrigin(pev, pev->origin);
+			}
+		}
+	}
+
 	// Handle Tank controlling
 	if( m_pTank != NULL )
 	{
@@ -2690,7 +2733,7 @@ edict_t *EntSelectSpawnPoint( CBaseEntity *pPlayer )
 			if( !FStrEq( STRING( pSpot->pev->netname ), STRING( gpGlobals->mapname ) ) )
 				continue;
 			// check if it is placed in wall
-			UTIL_TraceHull( pSpot->pev->origin, pSpot->pev->origin , missile, human_hull, NULL, &tr );
+			UTIL_TraceHull( pSpot->pev->origin, pSpot->pev->origin , missile, (mp_unduck.value&&g_fSavedDuck)?head_hull:human_hull, NULL, &tr );
 			if( tr.fStartSolid || tr.fAllSolid  )
 				continue;
 			// trace down to find if there is no floor
diff --git a/dlls/triggers.cpp b/dlls/triggers.cpp
index 351751c6..70da4ef6 100644
--- a/dlls/triggers.cpp
+++ b/dlls/triggers.cpp
@@ -1496,14 +1496,21 @@ struct SavedCoords
 	Vector trainoffset;
 	char trainglobal[256];
 } g_SavedCoords;
+
+
 void CoopClearData( void )
 {
 	// nullify
 	SavedCoords l_SavedCoords = {};
 	g_SavedCoords = l_SavedCoords;
 }
+
 int g_iMenu;
+
 void ShowMenu( CBasePlayer *pPlayer, const char *title, int count, const char **slot, signed char time = -1 );
+
+bool g_fSavedDuck;
+
 // Show to all spawned players: voting, etc..
 class GlobalMenu
 {
@@ -1741,7 +1748,8 @@ bool CoopRestorePlayerCoords(CBaseEntity *player, Vector *origin, Vector *angles
 			TraceResult tr;
 			Vector point = g_SavedCoords.origin[i] + g_SavedCoords.offset;
 
-			UTIL_TraceHull( point, point, missile, human_hull, NULL, &tr );
+			UTIL_TraceHull( point, point, missile, (mp_unduck.value&&g_fSavedDuck)?head_hull:human_hull, NULL, &tr );
+
 			g_SavedCoords.ip[i][0] = 0;
 
 			if( tr.fStartSolid || tr.fAllSolid )
@@ -1783,7 +1791,11 @@ bool CoopGetSpawnPoint( Vector *origin, Vector *angles)
 		point = point + g_SavedCoords.offset;
 		//UTIL_TraceHull( point, point, ignore_monsters, human_hull, NULL, &tr );
 
-		UTIL_TraceHull( point, point + angle * 100, missile, human_hull, NULL, &tr );
+		if( mp_unduck.value )
+			UTIL_TraceHull( point, point + angle * 100, missile, head_hull, NULL, &tr );
+		else
+			UTIL_TraceHull( point, point + angle * 100, missile, human_hull, NULL, &tr );
+
 		if( !tr.fStartSolid && !tr.fAllSolid )
 		{
 			g_SavedCoords.triggerorigin = tr.vecEndPos;
@@ -1973,12 +1985,14 @@ void CChangeLevel::ChangeLevelNow( CBaseEntity *pActivator )
 		}
 		else
 		{
+			g_fSavedDuck = false;
 			// Get current player's coordinated
 			if( pActivator && pActivator->IsPlayer() )
 			{
 				l_SavedCoords.triggerangles = pActivator->pev->angles;
 				l_SavedCoords.triggerorigin = pActivator->pev->origin;
 				l_SavedCoords.valid = true;
+				g_fSavedDuck = !!(pActivator->pev->flags & FL_DUCKING);
 			}
 
 		}