I actually don't know much about Raiden - I've bought Revengeance a couple days ago, found that it was cool - and he was a cool character, and decided to join as him. All of my knowledge - or lack thereof - comes from the internet. Please excuse any misconceptions and foolhardiness on my part. .-.

I will edit it now.
 
As for you, Shoryu, I'm just going to go on a limb and say that this is happening in the midst of Revengeance.