I don't know 3 people with a PlayStation, let alone 3 with Destiny - I suggest that any casual solos like me who want to do the strikes and raids with no matchmaking go and stand in a specific place in the Tower. I'd suggest the sofas at the back of the hangar basement. No other reason to go there! This avoids filling up you friend list with randoms or inviting people who are busy doing other things. Spread the word!