Chaos,
Your approach is quite naive. I would suggest the following: you check out all parts of the site, addons depot, missions depot, editors depot, forums etc. Then you make a rough estimation about the number of entries you can find there. Then, consider this: the submission procedures are available on an exposed part of the site. In fact, you cannot submit anything without reading and accepting them. The submission guidelines clearly, unmistakably and exhaustively answer the question you have (presumably) asked the named members of our staff: No, you can't, because you have to provide the mission file for a valid submission. When you have done that, make yourself clear about the fact that the staff of this site are doing all the work for you and the other members of the community for free in their spare time.
Now, considering the amount of items you have estimated, the simplicity of your question and the limited time the members of the site staff have at their hands, try to answer this question for yourself: Do you really think the staff has the time to answer requests like this? In my humble opinion, this would be an insult to all the members of the site who make valid requests.
As for your request to submit the mission without a mission file, I would suggest you take a step back from the screen and read the following three sentences slowly and carefully:
You say you want OFPEC to host your mission. You also say, unfortunately you can't allow OFPEC to host your mission. Finally you make a big fuzz because OFPEC refuses to host your mission.
Now think about what you have read. If you don't have a moment of clarity now, read the sentences again until you have it or the hunger becomes unbearable.
I would translate this post into German for you, but unfortunatly I have wasted more of my precious time for writing this post than I actually have.