Tycho has posted over in the Marathon Resurrection forum (and mentioned in ours) that the last texture (in this case, the Tick) has been finished, paving the way for this four-year-long project to bring the content of the original Marathon game to the Unreal engine to finally be completed.

At this point, we need your help...we need help to finish these remaining SP maps. We need everyone who can map and can dedicate some time to please try and help, or if you know someone who can help, ask them...if you know of places where you can ask for help, please do. The second part is that I'd like some input from everyone as to how to set up the distribution and collection method for these unfinished to finished maps.

If you're a mapper, or could be, or knows someone who is, drop into their forum and say so. Tycho says he is expecting an "early summer" release for Marathon Resurrection.