In every FPS that has a knife, you almost always have a primary slash, and a secondary stab. I believe TC:E can do much better...
In all my my gaming days i have never seen a sweeter melee combat system than that of EON, a ut2004 mod made by the famous Corona Leonis Entertainment. Unfortunatly EON was never completed, and by the looks of it, it may never be.
If any of you have UTK4, please download the alpha version of EON at:
http://www.coronaleonis.com/eon/main.html
and try out their melee system. Hopefully, youll get what i mean about how cool it is.
For those of you that dont have ut2004, ill try to explain it. In the bottom center of the screen there is a circle split into 8 equal sections like one would cut a pie. To swing your sword (in TC:E's case a knife) you simply hold down the right mouse button and drag the corsor into one of the sections of the circle. Your hand then swings the sword in the direction you dragged (dependant on what section of the circle you dragged over). When the right mouse button is held down and your in the process of dragging the cursor over a section, the camera locks in that direction, but still alows you strafe and move forwards and backwards.
Since the beginning of TC:E the creators have always asked for great original ideas and i hope you come to the agreement with me that this is one of them.