I find it really annoying when you have to wait 15 seconds for each person joining a match. Wouldn't it be a better idea where you have a 'ready' icon to say you are ready and then you get plucked straight into the game? You could have multiple icons for 5v5 2v2 cpc our tourne in case people only wanted to play certain ones.  This ready icon would last 30 seconds and you clan mates or friends can pick you during this time immediately.