Fix Male Assassin unable to use the Sniper Rifle.

Partially fixed the Stukabat being unable to move when target is unreachable.
Removed zombie/gonome bullet resistance.
Add Global Model Replacement and Global Sound Replacement.
Update Tier milestones.

src/dlls/globalreplace.cpp

@@ -0,0 +1,121 @@
+//=========================================================
+// Global Replacement:
+// Tool to replace all default models/sounds with a
+// customized list.
+//=========================================================
+#include "extdll.h"
+#include "dllapi.h"
+#include "meta_api.h"
+
+#include "cmbase.h"
+#include "cmbasemonster.h"
+
+namespace REPLACER
+{
+typedef struct
+{
+	char source[128];
+	char destination[128];
+} REPLACER;
+
+REPLACER *GMR;
+REPLACER *GSR;
+int numModels;
+int numSounds;
+
+void Init(void)
+{
+	if ( GMR != NULL )
+	{
+		free( GMR );
+		GMR = NULL;
+	}
+	if ( GSR != NULL )
+	{
+		free( GSR );
+		GSR = NULL;
+	}
+	numModels = 0;
+	numSounds = 0;
+}
+
+bool AddGlobalModel(const char *from, const char *to)
+{
+	if (numModels < MAX_REPLACEMENTS)
+	{
+		// allocate for the first time
+		if (!numModels)
+			GMR = (REPLACER*)calloc(MAX_REPLACEMENTS, sizeof(*GMR));
+		
+		strcpy(GMR[numModels].source, from);
+		strcpy(GMR[numModels].destination, to);
+
+		numModels++;
+		return true;
+	}
+
+	LOG_MESSAGE(PLID, "Can't replace model '%s', too many models in GMR.", from);
+	return false;
+}
+
+bool AddGlobalSound(const char *from, const char *to)
+{
+	if (numSounds < MAX_REPLACEMENTS)
+	{
+		// allocate for the first time
+		if (!numSounds)
+			GSR = (REPLACER*)calloc(MAX_REPLACEMENTS, sizeof(*GSR));
+		
+		strcpy(GSR[numSounds].source, from);
+		strcpy(GSR[numSounds].destination, to);
+
+		numSounds++;
+		return true;
+	}
+
+	LOG_MESSAGE(PLID, "Can't replace sound '%s', too many sounds in GSR.", from);
+	return false;
+}
+
+const char* FindModelReplacement( edict_t *pMonster, const char *from )
+{
+	// Individually set models takes priority!
+	if ( pMonster && !FStringNull(pMonster->v.model))
+		return STRING(pMonster->v.model);
+
+	// Find the model
+	for (int model = 0; model < numModels; model++)
+	{
+		if (strcmp(GMR[model].source, from) == 0)
+		{
+			// If found, use that model instead
+			return GMR[model].destination;
+		}
+	}
+
+	// Nothing found, stick with default
+	return from;
+}
+
+const char* FindSoundReplacement( edict_t *pMonster, const char *from )
+{
+	// Individually set sounds takes priority!
+	if ( pMonster )
+	{
+		CMBaseMonster *castMonster = GetClassPtr((CMBaseMonster *)VARS(pMonster));
+		//placeholder for soundlist keyvalue;
+	}
+
+	for (int sound = 0; sound < numSounds; sound++)
+	{
+		if (strcmp(GSR[sound].source, from) == 0)
+		{
+			// If found, use that model instead
+			return GSR[sound].destination;
+		}
+	}
+	
+	// Nothing found, stick with default
+	return from;
+}
+}