Thanks I.F. for your info. (I did not know anything about "junkyards")
Of course I know that there are mods outside with more levels. I dont play alot of those mods. (except proportions which has its good sides) I am rather conservative and I prefer a slightly (personally) modified TDM because of the AI quality. (eg I am not playing with mounts and improved some imbalanced weapons like APB, PBB, shields, torpedos and plasma missiles)
Because of the massive time and emotional investment (this current game I play since several months) I would not like to end it and begin a new one. Sadly my enemy will reach the tech end very soon. Well I dont think I can beat him anyway.
tschüß and once more thank you for your kind reply.
Klaus D