fixed shells rotating to door heading

[complexza]

Overview

Currently, Shells are being rotated to the side because the shell maker is getting the door heading offset as the rotation arg.

Testing Steps

Before my change:

After my changes, the shells are back to normal rotation.

• Did you test the changes you made?
• Did you test core functionality of the script to ensure your changes do not regress other areas?
• Did you test your changes in multiplayer to ensure it works correctly on all clients?