Changes

alias chainfireneut "alias fire2 ' +Shoot2'; +Shoot1; wait 0.07 fire2" alias chainfirelawneut "alias fire2 ' +Shoot2'; +Shoot1; wait 0.065 fire2" alias chainfireaxia "alias fire2 ' +Shoot2; wait 0.07 fire3'; alias fire3 ' +Shoot3'; +Shoot1; wait 0.07 fire2" alias chainfiregauss "alias fire2 ' +Shoot2'; +Shoot1; wait 0.2 fire2" alias inffirehx "alias fire1 ' +Shoot1; +Shoot2 0; wait 0.16 fire2'; alias fire2 ' +Shoot2; +Shoot1 0; wait 0.16 fire1'; fire1"

alias stopfire "alias fire1 ' '; alias fire2 ' '; alias fire3 ' '; +Shoot1 0; +Shoot2 0; +Shoot3 0"

alias normfire "alias +primaryfire +Shoot2; alias -primaryfire ' +Shoot2 0'; alias +secondaryfire +Shoot1; alias -secondaryfire ' +Shoot1 0'; echo '******** Normal firing'" alias revfire "alias +primaryfire +Shoot1; alias -primaryfire ' +Shoot1 0'; alias +secondaryfire +Shoot2; alias -secondaryfire ' +Shoot2 0'; echo '******** Reverse firing'" alias neutfire "alias +primaryfire chainfireneut; alias -primaryfire 'stopfire'; alias +secondaryfire Shoot3; alias -secondaryfire ' +Shoot3 0'; echo '******** 2xNeuts chainfiring'" alias lawneutfire "alias +primaryfire chainfirelawneut; alias -primaryfire stopfire; alias +secondaryfire Shoot3; alias -secondaryfire ' +Shoot3 0'; echo '******** 2xLawNeuts chainfiring'" alias axiafire "alias +primaryfire chainfireaxia; alias -primaryfire stopfire; alias +secondaryfire ' '; echo '******** 3xAxiaPosi chainfiring'" alias gaussfire "alias +primaryfire chainfiregauss; alias -primaryfire 'stopfire'; alias +secondaryfire +Shoot3; alias -secondaryfire ' +Shoot3 0'; echo '******** 2xGauss chainfiring'"

alias hxfire "unlockhxfire; alias +primaryfire togglehxfire; alias -primaryfire ' '; alias +secondaryfire +Shoot3; alias -secondaryfire ' +Shoot3 0'; echo '**2000****** 2xPlasmaHX infinite chainfiring lock'"

bind LMBUTTON +primaryfire bind RMBUTTON +secondaryfire

Here we defined 7 firing modes and bound them to keys with digits 1-7. If you don't use mouse buttons for firing, bind +primaryfire and +secondaryfire accordingly