How Come This Couldn't Be An Add-on?
I'm suddenly thinking how similar Victor is to The Jockey from Left 4 Dead 2.
Only difference being that Jockey can make Survivors go where he wants, albeit there's some struggling.
Can't Victor become able to do that through an Add-on?
Add additional effects, negative and/or positive, to make it balanced, sure.
But it'd be kinda cool to throw Survivors out the window of Coal Tower for example.