From Halopedia, the Halo wiki
Hey, since we're friends, I might as well give you a little piece of advice: if you want to upload a newer version of an existing image, then you need a least 5 edits in order to do this. Uploading a totally-new image will not be affected by this, unless I'm wrong about that and new users cannot upload new images until the have the prerequisite of 5 edits. And of course you have to have much experience and knowledge of the Halo universe.