when i read some of the tabs on guitarpro, it said to bend a note a full step and do a vibrato with it also. So how would i go about doing this?
you bend the string up until you hit the note you're looking for and then do the vibrato with the bended note.
I'd recommend spending a little less time with guitar pro and actually listening to the way it's actually played on the original track.
If it's really narrow vibrato on a sustained note, you can just alternate pushing down hard and soft with your finger, if that makes sense. It will be pretty subtle if you do that though, and if you're on heavy distortion you likely won't be able to tell...just one possible solution though.