Say what you want but space bar or ctrl+space bar and auto fire just makes the game fly by the sit of your pants when you get within 10K too fast.
You can't just say “well you don't like it don't use space bar or ctrl+space bar” but thats just it hitting space bar or ctrl+space bar is faster then me clicking the weapons...so remove space bar or ctrl+space bar and make it so everyone uses mouse click? Well no because I know games that do this and your finger will hurt.
So what other way can we do this but still be fun, new, most will like and with more skill.... how about this.
Hover the mouse over the weapon and use space bar to fire it but if the mouse is not over the weapon when you press space bar it will not fire, now that on its own is not really fun so you could use the right click to select weapons to fire a combo but allow that to fire without the mouse over the weapons after you set the combo when you press space bar but once fired you have to re-select the weapons to fire again.
Bridge Crew powers can stay the same with left click.