it seems a tad too predictable to me, like it's more a new feature that happens every once in a while and not a actual skill the AI will use freely, as someone has already said, whats going to happen if they let the AI do that while fighting someone else off? You'll die quickly or lose alot of health,
Close combat fighting would be a cool idea, but thats all it could be, a cool idea and nothing more, it wouldn't actually work, unless you changed the entire game to fit around it and if CoD3 did that, they'd get alot of money but kill off most of there die hard fans