In settings menu of Enemy Territory game we can change our game resolution only in standard sizes. How to make it custom? We need to type something in console. So let’s start. It is needed to write three commands in console. First, open console by pressing ~ button (over to Tab button) and then just write, for example:
Ofcourse, each command must be entered separately and approved by pressing the Enter.
After that restart the game, and now you should have your custom resolution.