Beta 3. Not a lot of really noticeable changes, just more polishing.

- Made Rifle scope shader toggleable, and tweaked its visuals a bit.
- Various adjustments to vector math (using portal-aware functions).
- Adjusted the penetration mechanics of the Quadshot, should be able to better go through multiple targets now.
- Fixed incorrect state jump after zoomed rifle altfire.
- Reduced the range of the Detector (2048 → 512), it was too massive.
- [flak_m] Fixed the issue where some looping weapon sounds would get stuck if the player died or dropped the weapon.
- Corrected Gun Lore description of Flamethrower altfire.

zscript/flamegun.zsc

@@ -314,7 +314,7 @@ Class FlameGun : UnrealWeapon
 		Vector3 x, y, z;
 		double a, s;
 		[x, y, z] = dt_CoordUtil.GetAxes(pitch,angle,roll);
-		Vector3 origin = (pos.x,pos.y,player.viewz)+10*x+3*y-z;
+		Vector3 origin = level.Vec3Offset(Vec2OffsetZ(0,0,player.viewz),10*x+3*y-z);
 		Actor p = Spawn(bAlt?"UFireball2":"UFireball",origin);
 		p.angle = angle;
 		p.pitch = BulletSlope();