IG with TY

Hey! so recently i got the tomcat and have been trying to learn how to fly it. I am able to start it up and takeoff and land. but when i try to takeoff and then go into combat i cant shoot missiles. i think i may be missing something in startup but ive watched so many tutorial videos and still can figure it out! when i pull the trigger on my joystick (it is bound correctly to the "trigger" slot) i hold for about three seconds and then nothing happens! master arm IS on so i dont understand what im missing. i think im just not starting up correctly.

which beta version is it in steam that you have to slelect? edit: nvm i got it