Help needed with simple...ish platformer

1

Thanks for having a look- I’m making a platformer where you can shoot jump and duck but I’m having some problems with the Actionscript- I can’t get my guy to duck. My AS is set up with animations for each direction ( so there’s a Walk Left and a Walk right- the same animation just mirrored) but I can’t get him to duck. Also i have no idea how to make him shoot . Thanks in advance.