Download/Security

• cl_disablehtmlmotd 1 - Disables the webpage HTML add-on for Server MOTD's as they can contain annoyances and are vulnerable to browser exploits (e.g. protocol links).
• cl_playerspraydisable 1 - Disable viewing player sprays.

Graphical/Framerate

• cl_ejectbrass 1 - Enabled some weapons to eject bullet casings after fired. While it can cause a noticeable slow down in combat with a lot of automatic weapon fire, you may want it for realism anyway.
• fps_max 300 - FPS cap, though it's not implemented correctly. Take your desired limit, such as basing one on your monitors refresh rate, and add 1.35% (e.g. 240Hz + 1.35% = 243)
• mat_setvideomode 1920 1080 0 - Game resolution (X, Y, Window Mode Off/On Boolean) - Due to the game's older anti-alias settings, setting a higher resolution than your monitor's native one can provide much better looking results.