I have an issue trying to install True Combat: Elite.
I followed these steps, But when I do the 4th step, I get this:
E: Unable to locate package enemy-territory
Can anyone help?
It seems my problems were caused by old playdeb repositories that were disabled when I upgraded to 10.10.
The solution was to:
I also removed all the old playdeb repositories from the software sources by opening the software center, going to Edit → Software-Sources → Other Software and removing the disabled entries.
Have you tried the installation via PlayDeb.net ? They have pretty straightforward instructions there how to install games from their site and Enemy Territory is included on their site.
Basically it does just the same as described above but prevents any mistakes you might have done during the installation.