Fighting Shamrocks

Fighting Shamrocks.jpg
Fighting Shamrocks
Affiliation Mercenary
Parent Command N/A

The Fighting Shamrocks were a mercenary military command that formed during the Fourth Succession War.


The unit takes its name from a former merc command and was founded during the Fourth Succession War. The command started out as scouts for the Black Warriors in the Circinus Federation. The unit broke contract after a horrendous raid on the Federated Commonwealth planet Teyvareb in 3054.

After breaking away from the Black Warriors, the Shamrocks signed on with the Commonwealth to counter any invasion from the Marian Hegemony along its border. During a joint operation with other merc forces to find and destroy a hidden pirate base, the supporting Gray's Ghosts went rogue. These actions would cost the Shamrocks one lance and would end with the commander swearing an oath to hunt down the treacherous unit.

During the Jihad, the command would receive spare parts and upgrades for independent operations throughout WoB territory.


Rank Name Command
Commanding Officers of Fighting Shamrocks
Captain Angus O'Leary 3058 - 3067[1][2]


The unit makes rapid advances and withdrawals.

Mercenary Rating[edit]

Dragoon Rating: D

Composition History[edit]


Fighting Shamrocks (1 BattleMech Company|Regular|Questionable)[1]


The Fighting Shamrocks (Company/Regular/Questionable)[2]

  • CO: Captain Angus O'Leary[2]
Note: At this point in time the unit was stationed on Thadora's Land.[2]


Fighting Shamrocks (1 BattleMech Company)

  • CO/Able Lance: Captain Angus O'Leary

- Medium to Assault-class 'Mechs

- Recon unit (fast, maneuverable light 'Mechs)

Adders (1 Infantry Company)

  • CO: Captain McGregor Williamson
  • XO: Lieutenant Josephina Archer

- Specializes in recon and security, each can work independently


  1. 1.0 1.1 Periphery (2nd Edition), p. 68: Fighting Shamrocks
  2. 2.0 2.1 2.2 2.3 Field Manual: Mercenaries, p. 113