IMO Mouse controls are fine if the keyboard uses the right configuration.
If the arrow keys are the only movement method, then it's going to complicate things if the numeric and alphabetic keys need to be used, since you will be constantly shifting from left hand on the main keyboard area and the right hand on the arrows, and left hand on the arrows, and right hand on the mouse. (or left hand main, right hand mouse but you will sacrifice movement, which tends to be something you don't want to lose)
That said, if you're planning to utilize the mouse and require the main keyboard area, do something like WoW does and set the up, down, left, and right movement keys to W,A,S, and D, so that you can use 1,2,3,4,e,r,f,g,x,c,v etc for misc functions (change weapons with 1,2,3,4,etc. reload with q or e (spacebar works too. you could also use shift. and set an alternate running speed to the other.), and all that fun stuff) use the mouse for shooting at all angles, all without sacrificing movement or adding too much complexity. |