After having a good look at Call of Duty: World at War, we decided to hurl some questions at developer Treyarch's studio head, Mark Lamia. Find out what we learned from the guy who has worked on everything from CoD5 to Santa Fe Mysteries: The Elk Moon Murder, after the break!

Variables
a = Call of Duty: World at War for Xbox 360, PlayStation 3 & PC
b = Call of Duty: World at War for Wii
c = Call of Duty: World at War for PlayStation 2

Proof
If a=b, and variations of c have been known to equal corresponding variations of b, then does a=c?

... Yes? Well, the problem is c doesn't exist. Call of Duty: World at War will be "next-gen only baby!" Treyarch studio head Mark Lamia confirmed with Joystiq, correcting an earlier report that the game would mark a return of the series on PS2; the first since Treyarch's Call of Duty 3. Despite claims that World at War is "not a different game on Wii" (with, um, a few exceptions) -- and therefore, wouldn't be all that different of a game on PS2 -- Activision and Treyarch have apparently retired PS2 from duty ... for good.

Check out our full interview with Treyarch right here.

Wondering what happened to the number "5" trailing Call of Duty and preceding World at War? Senior producer Noah Heller offered some insight into its absence, saying, "We're getting rid of the number in Call of Duty for a very specific reason: It's because we want you to know that when you're playing Call of Duty: World at War you're playing the best shooter, the best WW2 game ever. Likewise when you're playing Modern Warfare, likewise when you play any game that will be called Call of Duty."

Now, a handful of us have tried to parse that quote and, no matter which angle we take, it proves elusive. Is he saying that Modern Warfare didn't have a number in the title (because the game's box clearly says otherwise)? Is he saying that future Call of Duty installments, including whatever Infinity Ward is presumably working on, will also be sans number? Or perhaps, as rumored, Infinity Ward has renegotiated their relationship with the flagship title and any numbered sequels (all future sequels?) will be saved for them to develop?

We've sent our own inquiry into Activision for some clarification. We'll let you know what it throws back.

Call of Duty: World at War began life right after Call of Duty 3, before Call of Duty 4: Modern Warfare was released. So, following this logic, "there was no modern warfare" when World at War was conceived, Treyarch studio head Mark Lamia told Joystiq, responding to skeptics who fear that the series' return to World War II will be a return to mediocrity. In fact, Call of Duty's "B Team" alternate developer doesn't consider its next entry a rehash at all. "We don't really look at it like we're going back to World War II," said Lamia. "For [Treyarch], it's totally new."

Lamia pointed to World at War's two-year development cycle as a key factor; a full 12 months more than the team had to complete Call of Duty 3, which, while by no means a commercial or critical failure, stands as a definitive low point for the franchise. "When you got one year, you do what you know, and get it done well -- don't mess around. When you got two years, you have a chance to introduce new gameplay, new elements."

Check out our full interview with Treyarch right here.

Treyarch has ambitious plans for Call of Duty: World at War, namely in making sure that the Wii version is "not a different game," according to what Treyarch studio head Mark Lamia told Joystiq. "We have dedicated engineers, artists, and designers associated to the Wii platform. So we have a ton of resources, stable platform to start with while we're making that thing -- but it will be the exact experience except for the changes we need to make for the controls and everything else."

Everything else, eh? Aside from Waggletech® and Overpriced Plastic Shell® integration (yes, Zapper support confirmed), expect the Wii version of World at War to feature some significant scaling back in the graphics department, and co-op and online multiplayer modes. So, same game? Or just the same name?

Check out our full interview with Treyarch right here.

You've already seen Call of Duty: World at War's trailer and read about the game's four-player online co-op, but maybe you just want to see what it looks like when not moving and being, y'know ... interactive. We totally understand and we've painstakingly assembled a gallery just for your kind. Click through and use your powers of imagination to render these seven stills into a glorious animated tableau.

There are times when going at it alone just isn't enough, and you want a buddy by your side to help make it through to the day, not to mention help soak up enemy bullets. For this, Activision has revealed how co-op multiplayer will be handled in Call of Duty: World at War, in which players will lace up in the military boots of either U.S. Marines or Russian soldiers in both the South Pacific and European theaters of war.

Specifically, the Treyarch-developed shooter will include four-player online co-op for the Xbox 360, PS3, and PC, while the console versions will also allow soldiers to pair up offline for local split-screen gameplay, with "a unique co-op mode for two players" reserved for soldiers waggling on the Wii. However, the game's online focus won't end with simply gunning down enemy soldiers and offering moral support to buddies trying to make it through the game's "darker themes." Activision notes that Call of Duty: World at War will shell out persistent experience points to players participating in both competitive and cooperative online battles, as well as a difficulty curve that will scale depending on "a player's experience rank and rank of the player's friends."

Following the tremendous success of Infinity Ward's well-received Call of Duty 4: Modern Warfare, fans were generally disappointed to learn that the next installment in the wartime franchise would not only have a different developer, but would also be replacing their M4s with M1s, taking the series back to its World War II roots. If a recently uncovered rumor is credible, we're not entirely sure these same fans would approve of Infinity Ward's plans to throw the bullet-riddled franchise into the DeLorean, gun it to 88, and take it to where they don't need roads.

This rumor (and accompanying clumsy "Back to the Future" reference) finds its origins in a statement from an Infinity Ward insider, who mentioned the company is working on "a sci-fi title", and that further details concerning said title may or may not be made available during E3. It's extremely possible that Infinity Ward would get their hands back on the Call of Duty franchise once Treyarch has had its way with it, but would they really introduce elements of unrealism into such a history-steeped series, or could they be working on an entirely new, space marine-flavored franchise?

This is it: the moment of truth, folks. With this – the debut trailer for (the notably unnumbered) Call of Duty: World at War – Activision is essentially asking for feedback from every gamer on the planet. Can Call of Duty return to World War 2? Can alternating series developer (read: not Infinity Ward) Treyarch deliver a solid CoD title?

You can keep an eye out for our impressions (and our attempt to answer these same questions) early next week; however, in the interim, hit up this first piece of the puzzle after the break. Alternatively, for the HD-minded amongst you, check out GameTrailers or Xbox Live. Regardless of how you consume said trailer, we still want to know what you think. Sound off.

With Treyarch-developed Call of Duty: World at War recently unveiled by the UK's Official Xbox Magazine, you may be asking yourself when footage of the game's darker "new military theater" will be yours for the watching. Now Microsoft has announced that the game's reveal trailer will premiere over Xbox Live this weekend worldwide, giving gamers a first look at "the darkest corners of WWII."

Being built upon a refined version of the same engine that powers Call of Duty 4, World at War is expected to emphasize fear and tackle darker themes than those in earlier titles. Interestingly, today's trailer announcement notes that the video will be available over the Xbox Live Marketplace from June 21-22, suggesting that players on platforms such as the PS3 or PC may be able to poke their heads up from the trenches to watch it soon afterward, though nothing has yet been announced.

It surprised precisely no one when Activision last month revealed plans for yet another game in the publisher's popular Call of Duty franchise, though until now details have been kept just beyond our line of sight. Now new scans lifted from the latest issue of the UK's Official Xbox Magazine have confirmed earlier rumors that the series' fifth installment, apparently dubbed Call of Duty: World at War, will be handled by developer Treyarch, and that the game's previously teased "new military theater" will again drop players behind enemy lines in a battle for the Pacific during World War II.

According to the article, Treyarch aims to "explore the darkest corners of WWII," giving the military shooter more of a survival horror flavor by "tackling darker themes" and pitting players against a "new, seemingly alien fighting force." Activision has yet to officially announce Call of Duty: World at War, though it seems clear that we'll be trading in our guided anti-tank missiles for submachine guns sooner than we'd like.

[Thanks Nathan]

It appears some of the enthusiasm for Grand Theft Auto IV's multiplayer has waned, as the title has dropped to number three for top Xbox Live titles for the week of May 26. Old stalwarts Halo 3 and Call of Duty 4 raced to reclaim the throne, with the latter title once again taking the top spot.

To express gratitude, Infinity Ward's iamfourzerotwo said that this weekend will provide double experience points for all COD4 players. That will apply to both Xbox 360 and PlayStation 3. Additionally, the variety map packs will now show up as often as normal maps (they are currently twice as likely to now).

Infinity Ward's Call of Duty 4 has just reached that coveted eighth digit in unit sales. The developer told CNET yesterday that the shooter had sold over 10 million units across all platforms. While unable to provide a breakdown of the figures, Infinity Ward said it had sold the best on Xbox 360.

According to the studio, it is one of "less than 10" games to reach the 10 million mark since 2000. Although we don't know for sure what those games are, our best guesses are The Sims, The Sims 2, World of Warcraft, a half dozen Nintendo DS games and Wii Play. As of January 2008, Halo 3 was at 8.1 million units sold worldwide. (It should be noted that the Call of Duty 4 has an advantage here by merit of the PC and PS3 versions.)

As for Call of Duty 5, Activision has still not confirmed which franchise regular is developing the game, be it Treyarch or Infinity Ward. Rumors suggest the former, but given COD4's success, we really hope IW gets to latch onto the series and keep hold.

Update: We just got word from Activision that the 10 million figure does not take into account the Mac and DS versions of the game.

Although we still don't know definitively who's developing Call of Duty 5 (rumors suggest Treyarch), Activision Publishing CEO Mike Griffith said the next game will be changing settings again. In a conference call yesterday (35:00 mark), he said, "We'll bring the intensity of the recent Call of Duty: Modern Warfare title to a new military theater."

Also confirmed were plans to launch "on all four platforms we've participated on in fiscal 2008" -- that's Xbox 360, PlayStation 3, Windows and DS -- as well as PS2 and Wii. We're hoping the "new military setting" isn't related to World War II as the recent Treyarch job listing suggested.