When I request a gunner, I am usually too busy to type or read chat window. I would prefer to click on a popup when my gunner has requested joining me...
...that being said, a smaller popup that shows in the upper left corner of window might be in order - say...similar to popup you see when GV supplies are dumped out for you and you are motionless in your crippled Tiger. The SUPPLIES window pops up and you click what you need...
So... a small popup window in upper left corner that says "XXXX requests join" ? Also, maybe we can restrict requests to only our squad members in the MA ?