About Custom Q3:

The concept behind CQ3 is to bring all the fun of Doom, Quake1 and Quake2 to the Q3A engine. Stuff you can do with CQ3 includes customizing:

• The way things look, with Q1 and Q2 HUD settings and models
• Player movement and weapon knockback physics
• Weapon reload time, damage, sound, and speed
• Item respawn time, sound, and amount
• Client spawn health, armor, weapons, and ammo

Other highlights include:

• A fully-configurable jetpack
• Double-jumping from Quake2
• CTF Runes: haste, regen, strength, and resist
• Customizable particle effects
• Additive dynamic light option
• Flashblend-type effect (similar to gl_flashblend in Quake/Quake2)
• Admin System
• Player's head, torso, legs, and sounds can all be chosen independently
• Ability to flip the whole world upside down
• Many things can be made bigger or smaller
• Clan Arena mode that works on normal maps as well as ra3 maps (only 1 arena at a time though)
• Client-side predicted lightning gun and grappling hook
• Items on any map can be customized and saved to a .cfg file
• Game variable .cfg files can be executed by a client with admin on any server
• Three spectator chasecam modes: free-rotating follow, fixed behind follow, and first person view
• Enhanced demo playback: chasecam works and keys other than ESC do not stop the demo
• Several bug fixes, such as the problem of framerate-dependent physics (pm_fixed wasn't a good solution)