Excessive Plus (E+) is the fastest, most explosive 3D Action/Shooter (FPS) Mod in the world. It works with Quake III, IoQuake3, OpenArena and Xreal (2009 version).
Despite the statement above, E+ does not have to be fast or explosive. Unlike most Mods, E+ contains a powerful scripting engine that can alter its game-play in almost unlimited possibilities. E+ can behave exactly like baseq3/baseoa (right down to the last setting and physics). To test this, setup a server and load the baseq3 config or ask an Admin to demonstrate this for you. Similarly, it can imitate Defrag, CPMA, etc. And unlike those Mods, E+ has an active development process and versions designed specifically for Quake III or OpenArena.