Production information
Manufacturer Luthien Armor Works[1]
Production Year 3058[2]
Model OBK-M10[1]
Class Assault
Cost 18,111,450 C-bills
Technical specifications
'Mech type Inner Sphere BattleMech
Mass 80 tons
Chassis Alshain Class 92b
Armor StarSlab/3 with CASE
Engine Hermes 320 XL
Communications System Sipher Security Plus
Targeting Tracking System Matabushi Sentinel
Heat Sinks 10 double
Speed 64 km/h
BV (1.0) 1,027[3][4]
BV (2.0) 1,659[1][5]


Designed in 3058 with its name derived from a merger of Japanese words for monster "o-bake" and "bakemono", the O-Bakemono is considered by many to be the ideal fire support 'Mech. The O-Bakemono weighs in at eighty tons and has a top speed of 64.8 km/h, which is considered a good ground speed for an assault 'Mech. The O-Bakemono carries fourteen tons of armor with CASE to protect the 'Mech from complete destruction in the event of an ammunition explosion. Overall, the O-Bakemono accomplishes its mission as a fire support 'Mech well and with the 'Mech's intended combat mission and long reach both the speed and armor protection of the O-Bakemono are considered more than adequate.[3] The O-Bakemono was tested on Towne by the 17th Recon Regiment.[6]

Weapons and Equipment[edit]

The primary weapons on the O-Bakemono are a pair of Shigunga Arrow IV Systems. The Arrow IVs have an effective range of up to three kilometers, allowing the O-Bakemono to stay at extreme ranges and rain missiles onto the battlefield while friendly units spot for it. For close range defense, the O-Bakemono has two Diverse Optics Type 20 medium lasers and a ChisComp 32 Small Laser.[3]


  • OBK-M11 
    This field modification is a result of the difficulty in repairing units during the bitter fighting of the Jihad. The M11 downgrades the O-Bakemono's engine to a standard Pitban 240, reducing its top speed to 54 km/h. The artillery pieces, along with their expensive ammunition, are removed and replaced with a pair of cheap MRM 40s, each of which carries four tons of ammo. Four additional double heat sinks keep the 'Mech cool, while a C3 Slave Unit helps guide the hail of missiles the M11 can produce.[1] BV (1.0) = 1,538[7], BV (2.0) = 1,793[8]
  • OBK-M12 
    The M12 is a rarer variant due to the difficulty involved in the modifications to the 'Mech's loadout. The variant on the M11 removes two heat sinks and two tons of ammo to replace the C3 unit with a C3 Computer so that it can coordinate a lance's fire.[1] BV (1.0) = 1,418[9], BV (2.0) = 1,732[10]

Design Quirks[edit]

The O-Bakemono has the following Design Quirks:[11]

Related OmniMechs[edit]

  • Naga - The O-Bakemono was based on the Naga mobile artillery platform designed by Clan Wolf.[12]



  1. 1.0 1.1 1.2 1.3 1.4 Technical Readout: Clan Invasion, pp. 172–173: "OBK-M10 O-Bakemono"
  2. MUL online date for the O-Bakemono
  3. 3.0 3.1 3.2 Technical Readout: 3058 Upgrade, pp. 150-151, "O-Bakemono Profile"
  4. Record Sheets: 3058 Upgrades, p. 303
  5. Record Sheets: 3058 Unabridged (Inner Sphere), p. 284
  6. Hearts of Chaos, p. 303
  7. Record Sheets: 3058 Upgrades, p. 304
  8. Record Sheets: 3058 Unabridged (Inner Sphere), p. 285
  9. Record Sheets: 3058 Upgrades, p. 305
  10. Record Sheets: 3058 Unabridged (Inner Sphere), p. 286
  11. BattleMech Manual, p. 93 BattleMech Quirk Table - O-Bakemono Entry.
  12. Technical Readout: 3058, p. 134