Chapter 1: Defias Rising
Map would feature most of Westfall and parts of Elwynn (namely Goldshire and perhaps Northshire Abbey. Goldshire would periodically spawn rescuable units (similar to low-level WoW characters); Northshire after a quest would become a sanctuary of sorts, heaing nearby units and having strong defenses)
The hero with a small force starts in north-eastern part of the map, near a sign "Road to Stormwind". There he meets a wounded messenger from Northshire, which is besieged by Defias (side quest). If the player helps to defend the abbey, it becomes a sanctuary.
Main quests would involve destroying several Defias lieutenants in Elwynn, reporting to Goldshire to gain reinforcements, reaching Sentinel Hill to save it from Defias siege (it then becomes your base and you gain Gryan Stoutmantle as a powerful hero), checking several Westfall farms and solving people's problems there (aka Defias). Last quest would involve destruction of a larger defias camp, where a prisoner would be taken, who then would tell the hero of the Deadmines (cutscene)
Quests about farms could be side quests and they could give certain allies in a further mission.
Chapter 2: Siege of Moonbrook
The first quests of the mission would be about cutting Defias lines of supply, killing their sabotage parties, setting up siege camps with trebuchets and so on. Stealthy Defias would also come and try to burn the trebuchets and barracks. Then, after some heroic cutscene with Stoutmantle shouting an ultimatum to the Defias, it would revolve to an actual battle. The whole mission will be less like a strategy and more like a wargame - you have a set army and must use it carefully to complete the quests. Of course you get reinfoircemnets for the final battle. Stoutmantle and his people (and all buildings) are "allies", so not under player's control.
The mission finishes with burning of that large warehous and revealing the cave-like entrance into the Deamines.
Chapter 3: Into the Dead Mines
And RPG-like mission. You only have your hero, some allies gained from side quests in first mission, an elite unit (some Stoutmantle's lieutenant of something) and some regular units. There could also be some quest-givers, that would give side quests and join you when you complete those quests (the quests would mirror Deadmines quests from original WoW). The main quests would be just two - reach the entrance to to the ship cave and another to kill VanCleef. When you reach the cave entrance, the reinforcements arrive (not many regular units and perhaps another elite), the great ship starts shooting at you (explosions at random points - you gotta watch out for cannonballs) and you engage in battle with army of pirates and mr Smite. After Smite is dead, you and your remaining forces are teleported to the ship. Cutscene shows you "jump" on it and the sea-gates of the cave crumble, as a number of Stormwind ships come in. Then you must face VanCleef and his elite Blackguards on his ship (separate piece of map), while cannonballs land and set the ship on fire (dodge cannonballs again and don't stand in fire). When VanCleef is dead, you gotta loot his head and get the hell out of there before the ship explodes (final battle is sort of timed). The mission ends with a cutscene of Stoutmantle exposing VanCleef's head on a stake and shouting to people, that it will be safe in Westfall now. As he talks, a messenger begging for help arrives from Redridge.
Chapter 4: Blackrock and Roll, Again!
The name's obvious reference to two original RoC missions =)
The player gets control of Lakeshire and must reinforce defenses of the city and find materials to repair the bridge to be able to cross it (dragonlings arrive from across the bridge and their source cannot be destroyed until it is fixed). The twist of the mission would be a need to sacrifice units periodically to an army that fights blackrock armies in Burning Steppes. If the player doesn't send units regularly, he will be overrun but great army from the north. The quests would be simple - destroy main Blackrock bases and sack their castle.
Chapter 5: Steppes of War and Ash
Mission starts with a cutscene showing Magistrate Solomon meeting with
Morgan. Morgan pleads help in her fight with Dark Iron Dwarves.
Your tasks involve establishing a base and destroying various Blackrock outpost - Dreadmaul Rock, Pillar of Ash and the like.
Morgan's Vigil is an allied settlement, however Morgan is focused on fight with Dark Iron Dwarves. Side quests are focused on helping Morgan defeat the Dark Irons and completing them all will grant the player control over Morgan's forces.
When all opposing forces are destroyed, the mission ends.
Chapter 6: Marshal Windsor
The hero and Morgan descend into Blackrock Depths with a small strikeforce to find and free Marhsal Windsor. Dark Irons have buildings and traps in the tunnels, but Morgan can capture their cannons and tanks, use their armouries to upgrade her troops and can free prisoners to increase her army. Most BRD bosses are featured as side-quests, but they drop powerful loot and items similar to Glyph of Ultravision - which can be used in later scenarios to gain an advntage.
At the same time, forces of Lakeshire and Morgan's Militia are trying to hold out in a small camp, built on the other side of the Blackrock Mountain, attacked by waves after waves of Dark Irons from the Cauldron. They can try to reach Thorium Brotherhood in order to gain powerful upgrades and new units. (Units in BRD don't benefit from TB upgrades and units in Searing Gorge don't benefit from BRD upgrades)
The mission ends with Marshal Windsor telling the hero and Morgan that Lady Prestor is in fact Onyxia disguised and that they must confront her. Morgan declines help, claiming that she has to reclaim the Burning Steppes from what is left from Blackrock Clan.
Chapter 7: The Great Masquerade
The mission starts with the hero, Marshal Windsor and their army arriving at Elwynn Forest. They have to make way to Stormwind, but on their way they are constantly attacked by Defias first, then orcs and ogres, then even black dragonkin. When they reach Eastvale Logging camp, they can make a base there and try to amass more forces to reach Stormwind.
Once they finally reach Stormwind, there's a cutscene of the
Great Masquerade quest and then the player joins fight with the dragonkin. When all dragonkin are defeated, Bolvar congratulates you and campaign ends =)
(I thought that since in lore Onyxia is slain by Varian, it would be silly to let the player kill her)
