The enemies in Resident Evil 4 are NOT zombies. The game is very clear on this point.
Instead, the enemies in Resident Evil 4 are humans that have been infected with something, causing them to shamble around and attack anyone who isn't infected.
. . .
Wait a minute.
Last time I checked, the English language had a word for "humans that have been infected with something, causing them to shamble around and attack anyone who isn't infected", and that word was "zombies". And even if the RE4 enemies aren't zombies "proper" (infected with a parasite instead of a virus, able to speak and use simple tools) they're at least close enough that we can lump them in with the traditional definition. But don't you DARE call them "zombies" on the gamefaqs.com message boards, because they're NOT zombies. The game said so. And you will get called on it.
I'm always fascinated when creative people, like the ones who made RE4, wield this kind of linguistic power. They are arguing with an entire language, and somehow they're winning. It's amazing, and I want in on it. Here are some of my suggestions for Resident Evil 5:
No more guns. The main character will instead fight with metal devices that fire small projectiles by using gunpowder, and these weapons will be called . . . sherbets. I can't wait to see the first walkthrough that discusses, in minute detail, why the Blacktail sherbet is superior to the Punisher sherbet even though the Punisher sherbet can shoot through more than one enemy at a time.
And speaking of enemies, RE5 should have the things-that-aren't-zombies-even-though-they-totally-are from RE4, but then we'll add these new guys who wear all black, carry katanas, and hide in the shadows. But they won't be ninjas*, they'll be . . . tulips. And when you find yourself swarmed by a horde of tulips, you'll pull out your trusty Semi-automatic Sniper Sherbet and show them who's boss! If you get overwhelmed, you can always bring out a . . . flounder . . . pull the pin, toss it into the crowd and watch it explode.
I'll bet this technique can be applied to all sorts of things. For instance, if I wanted my field of expertise to sound more legitimate, I could just add "science" to the end of it, even if the field has nothing to do with scientific method! Or I could take a clearance sale and call it a "price drop"! The possibilities are endless!
*The Zombie-Ninja crossover is a nearly untapped goldmine. "Versus" was pretty cool, though.