Inner Sphere Factions:
----------------------
AR  - Arc Royal Defense Cordon
CC  - Capellan Confederation
CS  - Comstar
DC  - Draconis Combine
FC  - Federated Commonwealth
FRR - Free Rasalhague Republic
FS  - Federated Suns                    
FWL - Free Worlds League                        
LA  - Lyran Alliance
LC  - Lyran Commonwealth
SIC - St. Ives Compact
TFR - Tikonov Free Republic
TH  - Terran Hegemony
WOB - Word of Blake

Periphery Factions:
-------------------
CF  - Circinus Federation
EF  - Elysian Fields
GV  - Greater Valkrate
IP  - Illyrian Palatinate
MH  - Marian Hegemony
MOC - Magistry of Cannopus
OA  - Outworlds Alliance
OC  - Oberon Confederation
NCR - New Colony Region
P   - Periphery (Other)
RC  - Rim Collection
RWR - Rim Worlds Republic
TC  - Taurian Concordat
TD  - Tortuga Dominions

Clan Factions:
--------------
CGB - Clan Ghost Bears
CHH - Clan Hell's Horses
CJF - Clan Jade Falcons
CNC - Clan Nova Cats
CSJ - Clan Smoke Jaguars
CSV - Clan Steel Vipers
CW  - Clan Wolf

Chaos March Factions:
---------------------
CMC - Chaos March with Capellan Influence
CMD - Chaos March Disputed
CP  - Combine Peacekeepers
DS  - Duchy of Small
SC  - Styk Commonality
SS  - Sarna Supremacy
ST  - Saiph Triumvirate
TCC - Terracap Confederation