I simply do not have the dexterity to steer my legs, aim my arms AND find a finger to press 3 to fire.
The trick is that by default button1 fires the selected weapongroup.
So by binding your scrollwheel to switch weapongroups you can fire them all with button1.
Sadly you can't bind your scrollwheel in the game options yet, but it's easily done with notepad.
The file which holds your keybindings is called
[redacted]
..and save the file.
Note that if you have already changed the keys to switch weapongroups this bit is already in there!
In that case you just need to change the key you put in to "mwheel_down" or "mwheel_up"
This way it's a lot easier to manage your heat and use weapons in their right range.
Edited by Egomane, 13 April 2014 - 01:01 AM.
modification of game files