diff --git a/Credits.txt b/Credits.txt
new file mode 100644
index 0000000..603d4c5
--- /dev/null
+++ b/Credits.txt
@@ -0,0 +1,2 @@
+Mod kit sprite: Ghastly Dragon
+Modified Thunderbuster: Ghastly Dragon + ID Software
\ No newline at end of file
diff --git a/Sprites/FKITA0.png b/Sprites/FKITA0.png
new file mode 100644
index 0000000..a0f6f87
Binary files /dev/null and b/Sprites/FKITA0.png differ
diff --git a/Sprites/XTBRA0.png b/Sprites/XTBRA0.png
new file mode 100644
index 0000000..ea2b91e
Binary files /dev/null and b/Sprites/XTBRA0.png differ
diff --git a/Zscript.zsc b/Zscript.zsc
new file mode 100644
index 0000000..be3dcce
--- /dev/null
+++ b/Zscript.zsc
@@ -0,0 +1,329 @@
+version "4.5"
+
+// ------------------------------------------------------------
+// Cross Pulse Thunder Buster
+// ------------------------------------------------------------
+
+class CrossPulseThunderBuster:ThunderBuster{
+	int batt;
+	default{
+		+hdweapon.fitsinbackpack
+		weapon.selectionorder 70;
+		weapon.slotnumber 6;
+		weapon.slotpriority 1;
+		weapon.ammouse 0;
+		scale 0.6;
+		inventory.pickupmessage "You got the particle beam gun! There's something attached to the front...";
+		obituary "%o was roasted by %k's particle splatter.";
+		hdweapon.barrelsize 32,1.6,3;
+		hdweapon.refid "XTB";
+		tag "Cross Pulse Thunder Buster";
+	}
+	override void tick(){
+		super.tick();
+		if(level.time % 35 == 1 && weaponstatus[TBS_JUSTSHOT] > 0){
+			weaponstatus[TBS_JUSTSHOT] -= 1;
+		}
+		if(level.time % 18 == 1 && weaponstatus[TBS_JUSTSHOT] < 1){
+			if(weaponstatus[TBS_BATTERY] > 0 && weaponstatus[TBS_CROSSPULSECHARGE] < 20) {
+				weaponstatus[TBS_CROSSPULSECHARGE] += 1;
+				if(!random(0,4)) weaponstatus[TBS_Battery] -= 1;
+			}
+		}
+
+	}
+	
+	override double weaponbulk(){
+		return 200+(weaponstatus[1]>=0?ENC_BATTERY_LOADED:0);
+	}
+	override string,double getpickupsprite(){return "XTBRA0",1.;}
+	override void DrawHUDStuff(HDStatusBar sb,HDWeapon hdw,HDPlayerPawn hpl){
+		if(sb.hudlevel==1){
+			sb.drawbattery(-54,-4,sb.DI_SCREEN_CENTER_BOTTOM,reloadorder:true);
+			sb.drawnum(hpl.countinv("HDBattery"),-46,-8,sb.DI_SCREEN_CENTER_BOTTOM);
+		}
+		if(hdw.weaponstatus[0]&TBF_ALT){
+			sb.drawimage(
+				"STBURAUT",(-28,-10),
+				sb.DI_SCREEN_CENTER_BOTTOM|sb.DI_TRANSLATABLE|sb.DI_ITEM_RIGHT
+			);
+			sb.drawnum(int(2000/HDCONST_ONEMETRE),-16,-17,sb.DI_SCREEN_CENTER_BOTTOM,font.CR_GRAY);
+		}else sb.drawnum(hdw.weaponstatus[TBS_MAXRANGEDISPLAY],-16,-17,sb.DI_SCREEN_CENTER_BOTTOM,font.CR_GRAY);
+		int bat=hdw.weaponstatus[TBS_BATTERY];
+		int charge=hdw.weaponstatus[TBS_CROSSPULSECHARGE];
+		sb.drawwepnum(charge,20, posy:-8);
+		if(bat>0)sb.drawwepnum(bat,20);
+		else if(!bat)sb.drawstring(
+			sb.mamountfont,"00000",
+			(-16,-9),sb.DI_TEXT_ALIGN_RIGHT|sb.DI_TRANSLATABLE|sb.DI_SCREEN_CENTER_BOTTOM,
+			Font.CR_DARKGRAY
+		);
+	}
+		int rangefinder;
+	override void DrawSightPicture(
+		HDStatusBar sb,HDWeapon hdw,HDPlayerPawn hpl,
+		bool sightbob,vector2 bob,double fov,bool scopeview,actor hpc,string whichdot
+	){
+		int cx,cy,cw,ch;
+		[cx,cy,cw,ch]=screen.GetClipRect();
+		sb.SetClipRect(
+			-16+bob.x,-4+bob.y,32,16,
+			sb.DI_SCREEN_CENTER
+		);
+		vector2 bobb=bob*1.2;
+		bobb.y=clamp(bobb.y,-8,8);
+		sb.drawimage(
+			"frntsite",(0,0)+bobb,sb.DI_SCREEN_CENTER|sb.DI_ITEM_TOP,
+			alpha:0.9,scale:(1.6,2)
+		);
+		sb.SetClipRect(cx,cy,cw,ch);
+		sb.drawimage(
+			"backsite",(0,0)+bob,sb.DI_SCREEN_CENTER|sb.DI_ITEM_TOP,
+			scale:(2,1)
+		);
+
+		if(scopeview){
+			bool alt=hdw.weaponstatus[0]&TBF_ALT;
+			int scaledyoffset=36;
+
+			name ctex="HDXCAM_TB";
+
+			texman.setcameratotexture(hpc,ctex,3);
+			sb.drawimage(
+				ctex,(0,scaledyoffset)+bob,sb.DI_SCREEN_CENTER|sb.DI_ITEM_CENTER,
+				alpha:alt?(hpl.flip?0.7:0.8):1.,scale:((0.25/1.2),0.25)
+			);
+			let tb=ThunderBuster(hdw);
+			sb.drawnum(min(tb.rangefinder,999),
+				24+bob.x,12+bob.y,sb.DI_SCREEN_CENTER,
+				(
+					tb.rangefinder>=10
+					&&tb.rangefinder<hdw.weaponstatus[TBS_MAXRANGEDISPLAY]
+				)?Font.CR_GRAY:Font.CR_RED
+				,0.4
+			);
+			sb.drawnum(hdw.weaponstatus[TBS_MAXRANGEDISPLAY],
+				24+bob.x,20+bob.y,sb.DI_SCREEN_CENTER,Font.CR_WHITE,0.4
+			);
+			if(alt)sb.drawnum(int(2000/HDCONST_ONEMETRE),
+				23+bob.x,19+bob.y,sb.DI_SCREEN_CENTER,Font.CR_BLACK,1.
+			);
+			sb.drawimage(
+				"tbwindow",(0,scaledyoffset)+bob,sb.DI_SCREEN_CENTER|sb.DI_ITEM_CENTER,
+				scale:(1,1)
+			);
+			bobb*=3;
+			double dotoff=max(abs(bobb.x),abs(bobb.y));
+			if(dotoff<40)sb.drawimage(
+				"redpxl",(0,scaledyoffset)+bobb,sb.DI_SCREEN_CENTER|sb.DI_ITEM_TOP,
+				alpha:(alt?0.4:0.9)*(1.-dotoff*0.04),scale:alt?(hpl.flip?(3,3):(1,1)):(2,2)
+			);
+		}
+	}
+
+	action void A_ThunderZap(){
+		if(invoker.weaponstatus[TBS_HEAT]>20)return;
+		int battery=invoker.weaponstatus[TBS_BATTERY];
+		int charge = invoker.weaponstatus[TBS_CROSSPULSECHARGE];
+		int power = battery + charge;
+		if(battery < 1 && charge < 1){
+			setweaponstate("nope");
+			return;
+		}
+
+		//preliminary effects
+		A_ZoomRecoil(0.99);
+		A_StartSound("weapons/plasidle");
+		if(countinv("IsMoving")>9)A_MuzzleClimb(frandom(-0.8,0.8),frandom(-0.8,0.8));
+
+		//the actual call
+        vector3 gpos=HDMath.GetGunPos(self);
+		ThunderBuster.ThunderZap(
+			self,
+			gpos.z,
+			invoker.weaponstatus[0]&TBF_ALT,
+			battery
+		);
+
+		//aftereffects
+		if(invoker.weaponstatus[0]&TBF_ALT){
+			if(charge > 0){
+				invoker.weaponstatus[TBS_CROSSPULSECHARGE]--;
+			}
+			else if(!random(0,4)){
+				invoker.weaponstatus[TBS_BATTERY]--;
+			}
+			A_MuzzleClimb(
+				frandom(0.05,0.2),frandom(-0.2,-0.4),
+				frandom(0.1,0.3),frandom(-0.2,-0.6),
+				frandom(0.04,0.12),frandom(-0.1,-0.3),
+				frandom(0.01,0.03),frandom(-0.1,-0.2)
+			);
+			if(charge > 0){
+				invoker.weaponstatus[TBS_HEAT]+=4;
+			}
+			else {
+				invoker.weaponstatus[TBS_HEAT]+=6;
+			}
+			
+		}else if(charge > 0){
+				invoker.weaponstatus[TBS_CROSSPULSECHARGE]--;
+		}
+		else  if(!random(0,6)){
+			invoker.weaponstatus[TBS_BATTERY]--;
+		}
+		if(charge > 0){
+			invoker.weaponstatus[TBS_HEAT]+=random(0,1);
+		}
+		else {
+			invoker.weaponstatus[TBS_HEAT]+=random(0,3);
+		}
+		
+
+		//update range thingy
+		invoker.weaponstatus[TBS_MAXRANGEDISPLAY]=(battery>0?battery*200+8000:0)/HDCONST_ONEMETRE;
+	}
+
+	states{
+	fire:
+		#### A 3 offset(0,35);
+	hold:
+		#### A 0 A_JumpIf(true,"shoot");
+	shoot:
+		#### A 1 offset(1,33) A_ThunderZap(); 
+		#### A 0 {invoker.weaponstatus[TBS_JUSTSHOT] = 4;}
+		#### A 0 {
+					if(invoker.weaponstatus[TBS_CROSSPULSECHARGE]>1){
+						A_ThunderZap();
+						A_Refire();
+					}
+				}
+		#### A 1 offset(0,34) A_WeaponReady(WRF_NONE);
+		#### A 1 offset(-1,33) A_WeaponReady(WRF_NONE);
+		#### A 0{
+			if((invoker.weaponstatus[TBS_BATTERY] + invoker.weaponstatus[TBS_CROSSPULSECHARGE])<1){
+				A_StartSound("weapons/plasmas",CHAN_WEAPON);
+				A_GunFlash();
+				setweaponstate("nope");
+			}else{
+				A_Refire();
+			}
+		}
+		#### AAA 4{
+			A_WeaponReady(WRF_NOFIRE);
+			A_GunFlash();
+		}goto ready;
+	spawn:
+		XTBR A -1;
+		stop;
+	}
+}
+
+enum tbstatus{
+	TBF_ALT=1,
+	TBF_JUSTUNLOAD=2,
+
+	TBS_FLAGS=0,
+	TBS_BATTERY=1,
+	TBS_WARMUP=2,
+	TBS_HEAT=3,
+	TBS_MAXRANGEDISPLAY=4,
+	TBS_CROSSPULSECHARGE=5,
+	TBS_JUSTSHOT=6,
+
+	TB_BEAMSPOTTID=666123
+};
+
+// ------------------------------------------------------------
+// Cross Pulse Modification Kit
+// For people who want the X-Pulse TB but don't want to start with it in their inventory
+// ------------------------------------------------------------
+
+class CrossPulseModificationKit : HDPickup{
+	actor newtb;
+	bool garbage;
+	crosspulsethunderbuster buster;
+	default {
+		Scale 0.5;
+		Inventory.PickupMessage "You got a cross pulse ThunderBuster modification kit!";
+		HDPickup.RefID "XTK";
+		HDPickup.Bulk 40;
+		+hdpickup.norandombackpackspawn;
+		+Inventory.InvBar;
+		Tag "Cross Pulse ThunderBuster modification kit";
+	}
+	action void a_activate(){
+		let sacrificeTB = ThunderBuster(self.findInventory("ThunderBuster"));
+		if (!sacrificeTB) {
+			a_log("You need an ordinary ThunderBuster to use this on");
+		}
+		else {
+			if (sacrificeTB.weaponstatus[TBS_BATTERY] >= 0) {
+				HDMagAmmo.SpawnMag(self,"HDBattery", sacrificeTB.weaponstatus[TBS_BATTERY]);
+			}
+			
+			[invoker.garbage,invoker.newtb] = self.a_spawnitemex("CrossPulseThunderBuster");
+			invoker.buster = crosspulsethunderbuster(invoker.newtb);
+			invoker.buster.weaponstatus[TBS_BATTERY] = -1;
+			sacrificetb.destroy();
+			self.takeinventory("crosspulsemodificationkit",1);
+		}
+	}
+	states{
+		Spawn:
+			FKIT A 1;
+			loop;
+		Use:
+			TNT1  A 0 a_activate();
+	}
+}
+
+class CrossPulseHandler : StaticEventHandler
+{
+	override void WorldThingSpawned(worldevent e)
+	{
+		let CrossAmmo = HDAmmo(e.Thing);
+		if (CrossAmmo)
+		{
+			switch (CrossAmmo.GetClassName())
+			{
+				case 'HDBattery':
+					CrossAmmo.ItemsThatUseThis.Push("CrossPulseThunderBuster");
+					break;
+			}
+		}
+	}
+}
+
+class ModKitSpawner : EventHandler
+{
+    override void WorldThingSpawned(worldevent e)
+    {
+        if(level.maptime > 0)
+        {
+            self.Destroy();
+            return;
+        }
+        if(!e.Thing)
+        {
+            return;
+        }
+        if(e.Thing is "Inventory" && Inventory(e.Thing).Owner)
+        {
+            return;
+        }
+        
+        bool spawnable =
+        (
+            e.Thing.GetClassName() == "ThunderBuster"
+        );
+        
+        if(spawnable && random(0,1))
+        {
+            let Spawned = Actor.Spawn("CrossPulseModificationKit", (e.thing.pos.x,e.thing.pos.y,e.thing.pos.z+5));
+                Spawned.vel.x += frandom(-1,1);
+                Spawned.vel.y += frandom(-1,1);
+                Spawned.vel.z += frandom(1,2);
+        };
+    }
+}
diff --git a/mapinfo.txt b/mapinfo.txt
new file mode 100644
index 0000000..263a078
--- /dev/null
+++ b/mapinfo.txt
@@ -0,0 +1,5 @@
+GameInfo
+{
+	AddEventHandlers = "CrossPulseHandler"
+	AddEventHandlers = "ModKitSpawner"
+}