diff --git a/src/public/game/server/ai_hull.h b/src/public/game/server/ai_hull.h
new file mode 100644
index 00000000..78565d8b
--- /dev/null
+++ b/src/public/game/server/ai_hull.h
@@ -0,0 +1,127 @@
+//=============================================================================//
+//
+// Purpose: 
+//
+//=============================================================================//
+#ifndef AI_HULL_H
+#define AI_HULL_H
+
+#include "ai_navmesh.h"
+#include "bspflags.h"
+#include "mathlib/vector.h"
+
+//=========================================================
+// Link Properties. These hulls must correspond to the hulls
+// in g_hullProperties!
+//=========================================================
+enum Hull_e
+{
+	HULL_HUMAN,
+	HULL_MEDIUM,
+	HULL_FLYING_VEHICLE,
+	HULL_SMALL,
+	HULL_TITAN,
+	HULL_GOLIATH,
+	HULL_PROWLER,
+	//--------------------------------------------
+	NUM_HULLS,					// Confirmed, see [r5apex_ds + CB2765]
+	HULL_NONE = -1				// No Hull (appears after num hulls as we don't want to count it)
+};
+
+struct Hull_s
+{
+	Hull_s(const char* pName, int bit, const Vector3D& _mins, const Vector3D& _maxs,
+		  const float _height, const float _scale, const float _unk10, const float _unk11, 
+		  const unsigned int _traceMask, NavMeshType_e _navMeshType)
+
+		: hullName(pName), hullBit(bit)
+		, mins(_mins), maxs(_maxs)
+		, height(_height), scale(_scale)
+		, unk10(_unk10), unk11(_unk11)
+		, traceMask(_traceMask), navMeshType(_navMeshType) {}
+
+	const char* hullName;
+	int hullBit;
+
+	Vector3D mins;
+	Vector3D maxs;
+
+	float height; // IK Height?
+	float scale;  // Some scale?
+
+	float unk10;
+	float unk11;
+
+	int traceMask;
+	NavMeshType_e navMeshType;
+};
+
+enum HullBits_e
+{
+	bits_HUMAN_HULL          = (1 << 0),
+	bits_MEDIUM_HULL         = (1 << 1),
+	bits_FLYING_VEHICLE_HULL = (1 << 2),
+	bits_SMALL_HULL          = (1 << 3),
+	bits_TITAN_HULL          = (1 << 4),
+	bits_GOLIATH_HULL        = (1 << 5),
+	bits_PROWLER_HULL        = (1 << 6),
+};
+
+static inline const char* g_aiHullNames[NUM_HULLS] = {
+	"HULL_HUMAN",
+	"HULL_MEDIUM",
+	"HULL_FLYING_VEHICLE",
+	"HULL_SMALL",
+	"HULL_TITAN",
+	"HULL_GOLIATH",
+	"HULL_PROWLER",
+};
+
+static inline const Hull_s g_aiHullProperties[NUM_HULLS] = {
+	{g_aiHullNames[HULL_HUMAN]         , bits_HUMAN_HULL         , Vector3D(-16.0f, -16.0f, 0.0f)  , Vector3D(16.0f, 16.0f, 72.0f)   , 18.0f, 0.5f       , 60.0f , 250.0f, CONTENTS_HITBOX|CONTENTS_MONSTER|CONTENTS_NOAIRDROP|CONTENTS_OPERATORCLIP|CONTENTS_BULLETCLIP|CONTENTS_BLOCKLOS, NAVMESH_SMALL},
+	{g_aiHullNames[HULL_MEDIUM]        , bits_MEDIUM_HULL        , Vector3D(-48.0f, -48.0f, 0.0f)  , Vector3D(48.0f, 48.0f, 150.0f)  , 32.0f, 0.5f       , 256.0f, 256.0f, CONTENTS_HITBOX|CONTENTS_DEBRIS                                                                                , NAVMESH_MEDIUM},
+	{g_aiHullNames[HULL_FLYING_VEHICLE], bits_FLYING_VEHICLE_HULL, Vector3D(-150.0f, -150.0f, 0.0f), Vector3D(150.0f, 150.0f, 300.0f), 80.0f, 0.5f       , 0.0f  , 0.0f  , CONTENTS_EMPTY                                                                                                 , NAVMESH_LARGE},
+	{g_aiHullNames[HULL_SMALL]         , bits_SMALL_HULL         , Vector3D(-16.0f, -16.0f, 0.0f)  , Vector3D(16.0f, 16.0f, 32.0f)   , 18.0f, 0.5f       , 0.0f  , 0.0f  , CONTENTS_EMPTY                                                                                                 , NAVMESH_SMALL},
+	{g_aiHullNames[HULL_TITAN]         , bits_TITAN_HULL         , Vector3D(-60.0f, -60.0f, 0.0f)  , Vector3D(60.0f, 60.0f, 235.0f)  , 80.0f, 0.89999998f, 60.0f , 512.0f, CONTENTS_HITBOX|CONTENTS_DEBRIS|CONTENTS_OPERATORCLIP                                                          , NAVMESH_LARGE},
+	{g_aiHullNames[HULL_GOLIATH]       , bits_GOLIATH_HULL       , Vector3D(-80.0f, -80.0f, 0.0f)  , Vector3D(80.0f, 80.0f, 235.0f)  , 80.0f, 0.69999999f, 100.0f, 768.0f, CONTENTS_HITBOX|CONTENTS_DEBRIS|CONTENTS_OPERATORCLIP                                                          , NAVMESH_EXTRA_LARGE},
+	{g_aiHullNames[HULL_PROWLER]       , bits_PROWLER_HULL       , Vector3D(-40.0f, -40.0f, 0.0f)  , Vector3D(40.0f, 40.0f, 72.0f)   , 18.0f, 0.5f       , 60.0f , 250.0f, CONTENTS_HITBOX|CONTENTS_MONSTER|CONTENTS_NOAIRDROP|CONTENTS_OPERATORCLIP|CONTENTS_BULLETCLIP|CONTENTS_BLOCKLOS, NAVMESH_MED_SHORT},
+};
+
+//=============================================================================
+//	>> CAI_Hull
+//=============================================================================
+namespace NAI_Hull
+{
+	inline const Vector3D& Mins(const Hull_e id) { return g_aiHullProperties[id].mins; }
+	inline const Vector3D& Maxs(const Hull_e id) { return g_aiHullProperties[id].maxs; }
+
+	inline float Length(const Hull_e id) { return (g_aiHullProperties[id].maxs.x - g_aiHullProperties[id].mins.x); }
+	inline float Width(const Hull_e id)  { return (g_aiHullProperties[id].maxs.y - g_aiHullProperties[id].mins.y); }
+	inline float Height(const Hull_e id) { return (g_aiHullProperties[id].maxs.z - g_aiHullProperties[id].mins.z); }
+
+	inline int Bits(const Hull_e id) { return g_aiHullProperties[id].hullBit; }
+
+	inline const char* Name(const Hull_e id) { return g_aiHullProperties[id].hullName; }
+
+	inline unsigned int TraceMask(const Hull_e id) { return g_aiHullProperties[id].traceMask; };
+
+	inline Hull_e LookupId(const char* const szName)
+	{
+		if (!szName)
+		{
+			// Return the first if null.
+			return HULL_HUMAN;
+		}
+		for (int i = 0; i < NUM_HULLS; i++)
+		{
+			if (stricmp(szName, NAI_Hull::Name((Hull_e)i)) == 0)
+			{
+				return (Hull_e)i;
+			}
+		}
+
+		return HULL_HUMAN;
+	}
+};
+
+#endif // AI_HULL_H