It's fine as it is.
From what I've seen the hex shooting isn't 100% reliable - even if you have a target in the cone (and highlighted) by the time you shoot (animation, +261ms human reaction time, +400ms server round trip time) the target may not be in the hex you was shooting at.
With the default shooting - if you click on a target, then the target gets shot at even if he/she/it is on a different hex when the bullets hit (not talking about when the target moves out of sight).
The mode option is also bad.
Did any of you shoot big guns a lot? Most have full auto, burst and reload mods another mode will just add even more chaos finding that damn 'n' key on the keyboard.