I think merging stealth kill button with melee button in single player is fine as the ai won't move continuously and quickly all the time.
But in multiplayer when all players are moving continuously (save the noobs) and the range for the stealth kill button to appear is so small, a stealth kill could often turn into a stupid melee.
And melee is so weak in this game that shooting in melee range from the hip can kill people faster than actually using melee.
So it basically means if your stealth kill turns into a stupid melee, you'll lose all your energy and can be killed easily.
I think they should at least allow you to map the stealth kill button to other buttons instead of melee. So you won't lose all your energy due to melee even if you missed the stealth kill position.

So, Is there anyone else who would agree?

no please

if they do people will just run, cloak and press the stealth kill button until they get it, it would be worse than facestabs from tf2

we are already used to stealth kill on melee, I'm happy as is.

If anything split melee from zoom. So **** annoying to be stealthed with a sniper rifle to just have a stupid melee swing go off when your tring to zoom.