mouse click is extremely annoying for people who are old fashioned and use arrows+s
this because mouse click acts as a sort of auto aim. you can always be aiming at your character without stopping shooting, this ruins the game, so heres my idea.
remove mouse click and bring back right click walking, if you remember, you could walk with the mouse by click holding and your char rould walk where your mouse walked. which was cool and not too annoying. some people prefared moving with the left click a lot, and it didnt unbalance the gameplay.