Ever play elimination match made with randoms? It's literally the most infuriating experience available in modern gaming. They don't revive and basically try to 3v1 the other team like they are John Woo or something. This, my friend, is why matchmaking is a stupid idea. Just make pages of friends during your LFG attempts at whatever and a build a network of people on when you play from there. If you can't do that, don't expect to have end game content made available for that way of thinking. End game content requires close teamwork and communication. Matchmaking is silent and for lone wolfs who annoy the hell out of you.