I'd be up for something like that so long as I can have a Chaos character. 1 lone chaos follower wouldn't be lore breaking in any galactic war.
My only issue is that we know the ultimate outcome.
So instead why don't we flip it. The personal rp affects Vots but not vice versa. For instance ducks idea for a mission to kill that President guy in another universe. We can't affect is because we are in our universe thus the time frame of things won't matter.