Fix: Adds missing faction HUDs to Anchorpoint marines, miscellaneous CMB fixes

[Puckaboo2]

Part 1 of atomizing #11382

About the pull request

1. Adds faction HUDs to Anchorpoint Station marines.
2. Differentiates CMB Marshals vs CMB Riot Marshals; and Investigative Synths vs Riot Control Synths in role comms, including survivor variants.
3. Adds minimap_backgrounds and applies the correct minimap icons for the Survivor CMB synths.

Explain why it's good for the game

1. The Anchorpoint Station faction had code for HUD icon established, but not code to make the icons actually appear. Fixed.
2. Lore, I guess. They have different preset names, so I presume they could have differing assignments and role comm titles?
3. Investigative Synths are supposed to have a magnifying glass as their icons (cmb_syn) while riot control synths should have the regular synth (pmc_synth) icon. They have been properly applied, if they have been swapped.

Testing Photographs and Procedure

Screenshots & Videos

Changelog

🆑 Puckaboo2
fix: Anchorpoint Station marines have their minimap faction icons.
fix: Missing minimap icons, minimap backgrounds, and role comm titles have been applied to all CMB personnel.
fix: CMB Riot Control synths should have the correct minimap icons vs the CMB Investigation synths.
/:cl: