Its because of the game engine. Quake and Half-Life is a FPS game and they need a good netcode, but they lack the graphical details because they focused more on the game engine netcode. On the other hand Real Virtuality 3 is an engine that is very difficult to work with, and same as Cryengine and Frostbite engine lack the good netcode but they have breathtaking visuals. Especially Frostbite has a huge netcode issue because of the dynamic destruction and things like that. So give the developers more time, oh and BTW its not just the engine too, it can be the servers too. Hopefully im not wrong, but the current servers are 32 tick and they are changing to 64 tick in the following big patches so the time to start and finish is greatly reduced for the animations and movment ect. thus the gun play will be smoother and overall performance of the game. Its Alpha, many people dont understand this, that the game isnt even close to being finished, we have been warned that the game isnt finished and there are bugs. Thats why they have this feedback site so the devs can hear the community on all the bugs that we find. When the first review of the game came on gamespot, ive been looking through the comments, and ive seen a lot of hateful comments about the game, like shitty zombie pathfinding, poor performance, random deaths and agrovating bugs, ect. and only a handful of people understood that the game is not done. Sorry for the long reply. :P