Earlier this evening, I created a Team Match Play event at Shadowlands for four players. The first player in was my partner, and I think the game changed his shirt color to red. The next two players in were partners, and they had the same yellow shirt. The match progressed just as you would expect it to. Some holes were halved, we won a hole, and they won a hole. After winning their hole, they teed off first. We won the next hole, and we teed off first. My partner and I won the 7th and 8th holes, and the match ended. There were no apparent glitches, and the match went along very smoothly. If two of you want to team up in one of these, I think you just need to be sure and be the first one to 'join' the match, so that you are player #2.
Think I'm gonna be doing a lot more of these.
Warren