Marsden MBT I
- Type: Support Vehicle (Medium Tracked)
- Role: Juggernaut
- Tech Base: Inner Sphere (2396)
- Chassis: 65 tons
- Movement: 3 / 5, ICE
- Armor: 133 (BAR 7)
- Heat Sinks: 0 (0)
- Weapons:
- AC/5 (ammo: 20)
- SRM 6 (ammo: 30)
- Machine Gun (ammo: 100)
- Master Unit List: 4602
- Battle Value: 500