WAVE 7 Phase A: wire the projectile/missile weapon SUBSYSTEMS byte-exact (un-mislabeled)

An 8-agent decomp-mapping workflow mapped every weapon-family ctor + fire/spawn path
(scratchpad/wave7_maps.txt).  KEY IDENTITY CORRECTION via VDATA.h enum (base 3000=0xBB8):
the factory ctor-address comments were right but the built CLASS names were stubs/base --
    0xBCD == ProjectileWeapon  (was building the base MechWeapon stub)
    0xBCE == GaussRifle         (NOT MissileLauncher -- was a MissileLauncher stub)
    0xBD0 == MissileLauncher    (NOT BallisticWeapon -- was a BallisticWeapon stub)
Un-mislabeled + wired via Create<Class>Subsystem bridges (mirroring CreateEmitterSubsystem),
each static_assert-locked byte-exact on the now-locked MechWeapon(0x3F0)/Emitter(0x478) bases:

  * ProjectileWeapon (0xBCD, @4bc3fc : MechWeapon, sizeof 0x448)
      FIX: AmmoBinConnection was an empty 1-byte struct -> retyped to the binary's 0xC
           SharedData::Connection (was making the object 8 bytes short, sliding
           MissileLauncher's missileCount off 0x448).
  * MissileLauncher (0xBD0, @4bcff0 : ProjectileWeapon, sizeof 0x44C)
      FIX: deleted muzzleVelocity (ALIAS of inherited ProjectileWeapon launchVelocity@0x410)
           and salvoCount (SHADOW of inherited MechWeapon damageData.burstCount@0x3d4),
           keeping the single own field missileCount@0x448.
  * GaussRifle (0xBCE, @4bdcb4 : Emitter, sizeof 0x484 = Emitter + Vector3D muzzleVelocity)
      DEDICATED bridge (not CreateEmitter): its FireWeapon is a no-op (mov [eax+0x414],0) --
      a non-functional weapon in this 1995 build.  Also fixed GAUSS.CPP's discharge write
      rechargeLevel -> currentLevel@0x414 (the binary writes this+0x414).

Phase A safe-stubs FireWeapon (consume round + recoil, NO spawn): the reconstructed
Projectile (@4be1bc, 0x340) + Missile (@4bf5b4, 0x368) ENTITY classes are NOT spawn-ready
(Entity-base phantom members overflow their New() alloc -> heap corruption; New() takes
(int)this instead of the 0xD4 descriptor; Entity base size unconfirmed 2007-vs-1995, the
Mech 0x638-vs-0x854 problem).  The workflow's adversarial verify flagged the live spawn as a
heap-overflow hazard and recommended exactly this phasing.  Phase B = the entity byte-exactness
+ descriptor build + New(MakeMessage*) so a fired shot becomes a flying entity that damages.

Factory now 18 of 20 cases wired to real ticking classes (remaining: SubsystemMessageManager
0xBD3 [WAVE 8], Gyroscope 0xBC4 [deferred]).  Verified: Mad Cat (LRM/ballistic) + BLH construct
the real weapon classes + tick authentic charge/ammo/heat/recoil, DESTROYED-in-8, 0 crashes,
heapcheck-clean through construction.  Energy weapons already damage via the mech4 beam path,
so combat is unaffected.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

game/original/BT/GAUSS.CPP

@@ -71,7 +71,7 @@ void
 	//
 	// Fire the weapon
 	//
-		rechargeLevel = 0.0f;	// was outputVoltage: the Emitter dup was removed (== inherited rechargeLevel@0x320)
+		currentLevel = 0.0f;	// binary @004bdcb4/@004bdca4 write [this+0x414] == inherited Emitter currentLevel (discharge)
 
 		Check_Fpu();
 }
@@ -90,7 +90,7 @@ GaussRifle::GaussRifle(
 {
 	Check(owner);
 	Check_Pointer(subsystem_resource);
-	rechargeLevel = 0.0f;	// was outputVoltage: the Emitter dup was removed (== inherited rechargeLevel@0x320)
+	currentLevel = 0.0f;	// binary @004bdcb4/@004bdca4 write [this+0x414] == inherited Emitter currentLevel (discharge)
 	Check_Fpu();
 }
 
@@ -151,3 +151,20 @@ Logical
 	return IsDerivedFrom(ClassDerivations);
 }
 
+
+
+//===========================================================================//
+// WAVE 7 factory bridge -- GaussRifle (factory case 0xBCE, "MissileWeapon"
+//   mislabel).  VDATA.h enum: 0xBCE == GaussRifleClassID.  GaussRifle : Emitter
+//   (sizeof 0x484 = Emitter 0x478 + Vector3D muzzleVelocity).  ctor @004bdcb4,
+//   no-op FireWeapon @004bdca4 (just zeros currentLevel -- a non-functional weapon
+//   in this 1995 build), so it needs a DEDICATED bridge (CreateEmitterSubsystem
+//   would build a plain Emitter that WOULD deal damage).  Was building a
+//   MissileLauncher RECON_SUBSYS stub.  alloc 0x484.
+//===========================================================================//
+Subsystem *CreateGaussRifleSubsystem(Mech *owner, int id, void *seg)
+{
+	Check(sizeof(GaussRifle) <= 0x484);
+	return (Subsystem *) new (Memory::Allocate(0x484))
+		GaussRifle(owner, id, (GaussRifle::SubsystemResource *)seg, GaussRifle::DefaultData);
+}

game/original/BT/GAUSS.HPP

@@ -136,8 +136,14 @@ class Projectile;
 			FireWeapon();
 
 		Vector3D
-			muzzleVelocity;
+			muzzleVelocity;			// @0x478 (past Emitter 0x478) -- ends 0x484
 
+		friend struct GaussRifleLayoutCheck;
+	};
+
+	struct GaussRifleLayoutCheck {
+		static_assert(offsetof(GaussRifle, muzzleVelocity) == 0x478, "GaussRifle::muzzleVelocity @0x478 (Emitter must end 0x478)");
+		static_assert(sizeof(GaussRifle)                   == 0x484, "sizeof(GaussRifle) 0x484 (== factory alloc)");
 	};