Ohh
Boro... sorry I have not revealed any further info yet (well I checked the actual timelines only today to be honest), but your request is impossible as there are no orcs yet when the game begins. It was a nice idea...
So let me state it here:
The game begins in the era where everyone is waiting for the Firstborn to emerge in the Middle-Earth. Yavanna and Oromė are roaming the M-E with some Maiar either accompanying them, or some of the Maiar being there more or less on their own, whatever their reason for being there is...
Melkor has heard about the dwarves through his spies but has not been able to locate the sleeping ones - therefore the idea of catching some of the Maiar dwelling in the M-E at the time... It is more or less Valian year 4500 when we begin the game (you have been captured around that time or a bit earlier).
So all of you players are Maiar who have never seen an elf, an orc... or a dwarf or a human to that matter. Things will start to pour outside your prison soon enough, but I'm afraid little of it will get to you wretched guys in the deepest recesses of Utumno... even if some of the great turns of history might affect you at least indirectly.