Pilot class SB controls?

I am on xbox and is there a list of which buttons do which thing, i know how to shoot but other than that i dont know
I recall there was a way to destroy it before the time expires

Y puts it into stance/defence mode (where teammates can use it as cover).
X to dismount it - one of your teammates can then get in & operate it if required.
Don’t think there’s a way to end it early, but maybe try holding Y?