The vanilla Mattock Ship has a bug in its MFD (Multi Function Display), which can only be noticed if you load two different missile racks in the ship.
Bascially, the hardpoint position for the missile racks is inverted in the MFD, which causes confusion to check which one is active.
This mod fixes the issue.
Shouldn't conflict with any other mod.

Note:
Although I've posted a screenshot with modded ship HUD, this mod doesn't change the vanilla HUD.
It only fixes the weapon display.

Installation:
The mod is basically one .PAK file to be copied in the game folder.
Place the file inside your ...\Rebel Galaxy Outlaw\PAKS folder.

To unistall, just delete the mod file.

Thank you sp00n82 for the mod tools and tutorial:
https://github.com/sp00n/rgo-lua-utils
https://github.com/sp00n/rgo-mod-helpers