I got bored and whipped this up to post on the HomeLAN site...(for some reason the spaces between paragraphs didn't come out right over there...lol).
I understand the message you are trying to convey in this letter. You are not the ONLY one responsible for the creation process involved with the DooM movie. As such, it is also understood that there are other forces at play, beyond your control, with the ability to alter the end result of what we see in movie theatres. It happens in nearly every film made, as can be seen by the many examples in behind the scenes stories, like those on many of today's DVDs. This point is completely acknowledged by pretty much every movie goer (and DooM fan).
You stated, "...it was never the goal of anyone involved in this film, from myself and the producers to the studio to the guys at id, to make a direct film adaptation of the game(s). The thought process has always been to create an extension of the Doom universe that will give fans an interesting new take on the themes that they've come to enjoy in the game." So, it is understood that "copying" the game(s) was not the intent for creating a film version of DooM.
While there are plenty of hardcore DooM fans (aka fanboys) that are going to be unhappy with nearly any changes, there are many more people that have simply played the different games of the DooM series and expect certain things (as mentioned by others who have posted on this topic) when they would go to see a film titled DooM which was (supposed) to be based upon the games. With something as pervasive (and/or popular) as the DooM series of games, these expectations cannot, or should not, be overlooked.
I do have to disagree with your statement that "No film adaptation can ever match the expectations of the original fans". Just because someone is an original fan of something, does not mean they are unable/unwilling to accept "some" changes made for a film adaptation. Little changes are, or should, be expected as not "everything" can be put on screen (nor would it originally work in some cases).
I think back to how many bad films based upon comic book characters were made in the past. Then, I think about how many good (or at least better) films based upon comic book characters have been made in the past several years. Between these two groups of films (failures/successes), one of the biggest differences (beyond better film making and techonolgy used in their creation) was their command of the original content upon which they were based. Those that failed to "live up to expectations" fell by the wayside, while those that were true to the original content were usually received better by the movie going public.
The success of modern comic book character films, with their higher quality and attention to detail (to the original subject matter), should be an indication of what movie goers want to see. This should NOT be forgotten in the creation of films based upon games, especially considering that games are MANY times more successful (i.e. profitable) than comics (not to mention the film and music industry combined). For a game series as well known and popular as DooM (with MILLIONS of copies sold), it is not likely many of the people going to see the film are unfamilar with the subject matter. There are certain expectations that go along with something like this, like I said before, that cannot, or should not, be overlooked.
You state being "solely responsible" for having "toyed with some elements of the game", yet, you seem unwilling (or more accurately "frustrated") by having to accept the burden (brunt/blame) of the negative feelings the fans of the DooM game series have based upon your initial actions (those changes present in the originally pitched screenplay). It is unrealistic to have altered those things from the beginning and not expect some backlash from DooM fans.
I am not saying you are the ONLY one responsible for the current state of the film, as you have made it clear changes were made beyond your control. However, whether you want to or not, you must accept responsibility (or at least the negativity) for the fact that your alterations ("twists") to the original content of the DooM series for this film is something that many more people than just hardcore DooM game fans are not going to like (or willingly accept). This has less to do with what each person's "version" of the DooM film in their head would be, and more to do with the certain things (expectations) of what makes DooM, DooM.
I also have to disagree with your claim to being "the greatest ally the Doom fan has had during the entire process of the film being made." It was YOUR (admitted) changes to the game elements that were made in order to get the screenplay accepted for filming. If the main goal was simply to get a film shot that carried the name DooM, then this would be understandable. However, a "true" ally (as obviously seen by the reaction of DooM fans on the internet) would have been willing to stick to as many of the original elements that defined and made the DooM games the popular success that they are still to this day.
And as for your statement that "really none of us can do anything about it at this point", you are incorrect. DooM fans can agree not to go see or rent this film. They can also tell other movie goers that may not be aware of the fact that the film they are going to see is not going to properly reflect the DooM experience they are likely to be expecting. Continued lack of support for these types of cash-in attempts by Hollywood (as well as the game industry), will cause projects like this to stop being produced.
On one hand this is a bad thing as the fewer game related movies there are, the less opportunities there are for film creators. However, on the other hand, just like modern comic book character films, this could have the ability for make Hollywood do these intellectual proprties justice (or at the very least, pay a bit more attention to detail and quality with respect to game related films).