Did I actually specifically say prison?
Yes we are in a prison, but the prison is in the middle of an orc camp. if we "Escape" the prison we still have to escapet he orc camp and then we have to escape the orc controlled zone. tis like a matroska egg of escaping
Obviously we would need to develop waaagh skill. I imagine it starts with us painting ourselves green, pretending to be an ork, and challanging a warboss for dominance and beating it in glorious fisticuffs in front of many other orks. They will all see us as a new warchief and suddenly we would be the core of an influx of waagh energies, which our gamer power would then adapt to let us control.
... that or our head will asplode. or we might actually transform into an ork
on second though, lets not do it at all