* A new BattleTech story and Campaign mode, consisting of 36 planned new flashpoints, based on the unofficial history of the Arano Restoration where Kamea Arano wasn't presumed killed as the ComStar cover-up claims (a.k.a. original campaign). Instead, she was exiled and the company entered the service of canon BattleTech figures such as Interstellar Expeditions and Chandrasekhar Kurita and the real events of the Aurigan campaign were suppressed.

* Twenty-eight original flashpoints released, campaign mode only: You On The Run, Exodus, Evil Eye, The Periphery Is A Harsh Mistress, The Mad Cat Who Walks Through Walls, Here Might Be Dragons, Jinxed, It Came From The Rim, Death's Mask, God Mecha, Amaris Legacy, Tales of 1001 BattleMechs, The Man Comes Around, Danse Macabre, Putting Out A Fire, A Country Too Far, Paradise City, Kiss Them For Me, Bandit Kingdoms and Petty Tyrants, The Magistrate, Heads Will Roll, Backdoor Man, Dark Forest, Horse Latitudes, Dark Horse, Comanche Moon, Question Of Faith and Speak Of The Devil.

* Eight more campaign flashpoints are being written for parts 2 and 3 of the new campaign: Flesh For Fantasy, Wilderness, Dreams of Nagayan Valley, Arano Restoration, The Eyes Of Truth, Unnatural Selection, Barbarians At The Gates and Redoubt.

* New story includes a total of 114 new contracts, 129 new crew conversations and 295 lore descriptions, and is divided into three parts, each with its own subarcs.

* The vanilla FPs are included in the new Campaign as independent mini-campaigns, except for the Black Widow mini-campaign but still appears on Career mode.

* 473 new playable star systems, adding all of the Taurian, Canopian and Marian worlds plus several Deep Periphery systems, with the star map extended in all directions to also include more Davion, Liao and Marik systems, as well as other Periphery realms. All of the new systems' descriptions have been written to reflect the 3025 BattleTech era.

* 87 new events that include crew deaths, a parrot, JumpShip issues, and assorted oddities, all part of living during a difficult period and region of space, with wars flaring up all the national sentiments.

* 55+ original factions, canon and new, with their own leaders, allies/enemies, contracts and 'Mech/vehicle variants. Ally/fight pirate gangs, corporations, regional powers and bandit kingdoms in both campaign and system contracts.

* 66 new cast characters, several with new artwork.

* 600+ new contracts and variants added, including pirate, IE and Periphery flavored.

* 700+ new BattleMech variants added to fight as Opfor, can appear equipped with Infernos, ECM, plus other LosTech surprises.

* Optional - Community Asset Bundle integration, currently adding the Charger, Clint, Crusader, Dervish, Falcon, Firebee, Firefly, Marauder II, Mongoose, Ostroc, Ostsol, Ostwar, Stinger, Talos, Thug, Toro, Valkyrie, Wasp and Wolfhound 'Mech models.

* All the 'Mech quirks of the Heavy Metal DLC can now appear on any 'Mech model (only certain factions will use them).

* 23 new vehicle variants, called 'technicals', only used by pirate factions.

* 77 canon variants of the vanilla 'Mechs, nearly all of the 3025 era and SLDF variants.

* 24 new turrets, several equipped with artillery pieces.

* 33 new BattleMech upgrades, all based on the 'Mech quirks of the Heavy Metal DLC.

* Pilot backgrounds now also include Kurita Noble, Steiner Noble, Marian, Circinus, Lothian, Illyrian and Deep Periphery.

* Career mode has nearly everything from above available, except for the story missions/flashpoints.