Return array from UserForm

I'm trying to make a userform for the first time and it's not going well. I have command button on a worksheet that when clicked opens a userform with 3 checkboxes. Depending on which boxes are checked I would like to modify an array for use later on in the command button's sub.

I can't figure out how to build the array in a way that allows me to use it in the sub though. Any assistance would be greatly appreciated. My code is attached.