I think it stands for Masters Of Orion 2. Created by Rincrast.
Game specs and planet and ship info can be found here http://www.psgygq.com/twa/TWA_DB_PROJECT_Player_Edition/twa_db_project.html
(Thanx to Lonestar for hosting it)
I think it's a very good edit. Better for mid to low turns 1000 - 4000 (3k is perfect) Just my preference tho. Each to there own.
I'm in a MOO2 edit at the moment and looking for corpies. if you want to come in and have a look contact me on icq. Number below. Or PM on this forum.
Hope this helps.