S2Mods-MMCR101 icon


A visual-only mod for the R-101, inspired by the MCRN from the show The Expanse.

By S2Mods
Last updated a month ago
Total downloads 960
Total rating 2 
Categories Client-side Language: EN Mods
Dependency string S2Mods-MMCR101-1.0.1
Dependants 0 other mods depend on this mod

This mod requires the following mods to function

EladNLG-ModSettings-2.0.2 icon

A mod that adds a settings menu for modders to add their own settings in - with a filter to find certain ones easily.

Preferred version: 2.0.2


Martian Marine Corps R-101

A visual-only mod for the R-101, inspired by the MCRN from the show The Expanse.



  • Added ModSettings 2.0.0+ compatibility


- 2 Firing Modes

  • Ionised Rounds using mainly blue/sparky FX
  • Kinetic Rounds using mainly orange FX; closest to base game R-101
  • Switch between them by pressing Z
  • Current mode's indicated by crosshair colour and a UI element
  • Only difference between the 2 is FX and VFX

- Custom HUD Elements:

  • Crosshair (changing colours based on firing mode, plus with dot shape)
  • Firing mode indicator
  • Weapon flyouts on mode switch (mode name + description)

- Entirely Holo-Graphic Scope:

  • Replaces the HCOG scope (the one with the chevron sight)
  • Fully transparent when not aiming down sights

- Custom Name and Description

  • Both in the menu and in-game



  • Disables or enables additional sounds and particles during reload

- ADS UI Fade 50%

  • Cuts down the mode indicator's opacity by 50% while aiming down sights

- Low Ammo Colour Change

  • Changes crosshair's colour based on number of rounds left in the magazine

- Crosshair Rotation

  • Either no effect or rotates the crosshair by 45 degrees

- Crosshair Scale

  • Scale of the crosshair, recommended values are between 0.85 and 1.1



Settings in the S2.MMCR101 | MAIN MENU ONLY category should only be changed in the main menu as tweaking them anywhere else won't have any effect.


A matching weapon skin can be found in the Northstar Discord Server in the #skins-collection channel; simply ctrl+F for MCRN to find it :)


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Available versions

Please note that the install buttons only work if you have compatible client software installed, such as the Thunderstore Mod Manager. Otherwise use the zip download links instead.

Upload date Version number Downloads Download link  
2022-12-22 1.0.1 249 Version 1.0.1 Install
2022-5-13 1.0.0 711 Version 1.0.0 Install