Warcraft Total War is a total conversion mod for Medieval II Total War. Our goal is to bring the Warcraft universe into a Total War game. This mod will feature epic battles with units from the Warcraft universe and a new campaign that will cover the events of the Third War and beyond.
The Drakkari Ice Trolls of Northrend now have access to mercs as well, including the same Zandalari mercenaries, Northrend Elemental mercs and what-not - but they also do offer the Drakkari Axe Throwers as a mercenary for the other Trolls and for themselves from their home regions.
The Blue Dragonflights are unique mercs for the Troll factions from the area of Dragonblight, the settlement there is Wyrmrest, seat of the Wyrmrest Accord or the Dragonflights Alliance.
This also means that all the Troll factions can get the Blue and Bronze Dragonflights, but only the Farraki and the Drakkari are likely to get them as the AI.