Some games based on the old versions of the Unreal engine (Rune, Wheel
of Time, Deus Ex and so on) are affected by two types of problems:

A] crash caused by the lack of player's informations in the LOGIN command

B] crash caused by too much players

Proof-of-concept:

  http://aluigi.org/fakep/unrealfp.zip

Examples:

A] unrealfp SERVER PORT

B] unrealfp -f SERVER PORT