This exists in Elder Scrolls online. (Destiny)

by Kermit , Raleigh, NC, Monday, June 22, 2015, 17:14 (3681 days ago) @ Funkmon

I have never used it because I don't like people, but it exists. The question is, is it possible to implement with Destiny's set up? It sure would be swell! Even if it was a ping all friends playing this game right now button, so we see "Funkmon needs help on *mission or whatever*" pop up at the bottom line contacting Destiny servers is on, that would be swell. My primary motivator for playing this game is friends anyway, I'd help whenever I could.

I'd take this option, too, but for making Destiny more like how it was initially described, I like the active in-game option best. Of course, they first need to solve the problem of you not being able to join the person standing beside you in the Cosmodrome without going to orbit.