Possible multiple campaigns...

Sort of like Warcraft II, the opening cinematic will be the War II orc ships transporting orc troops towards a Human land base. The overtaking of the base will be all part of the cinematic.

The Orc Campaign will be first in a timeline, you are the leader of one of the strike forces of one of the three tribes that are invading, and your job is to establish a foothold (rather large) on the Human continent.

Possibly the other races would be here somewhere.

The Human Campaign would end it, with the defeat of the War Chieftain of the Hoarde, who is in the established beachhead base.

Or after this, where say the Undead Scourge attacks the shattered human forces, spread from the killing of the last bands of Orcs. The Humans would be driven back into a large front, and methodically broken.

The Night Elves would come to the Humans rescue, killing off the Undead Scourge, as there was greater threat from the Scourge than from the Humans.

see what you think, help it a bit

to me over taking a base sounds like that would take some time. How do you plan on overtaking it so no one will get bored of the cinematic anf not play it? Or is the overtaking short, like lets take a character named 2 and another named 3.

2's armie is named 1 3's army is name 4
2 =the overtaker
3 = the taken

2 orders his 1s to send in ship and kill all of 3s 4s.

all the 4s are killed then 2 comes in then kills 3.

to make it short so that the people have to die not the buildings being destroyed.

after reading what i just typed i hope it makes sense.