So me and my two friends have a 3v3 team and we don't tend to do very well (8-26 in Bronze..) but we're not new players and one of us is in Diamond for 1v1s but we do so bad in 3's? We usually go two Protoss and one Zerg. Zerg ling/bangling mass and us two toss usually go zealots/stalkers/sentries, voidrays if that doesn't work. We do good against Zerg but Terran dominates us ! Any ideas against Terran?
Wall disruption can work. One little drone attack a suv as he builds can sometimes keep the wall down long enough to get that rush force in.
3v3 has an entirely different dynamic than that of a 1v1, im plat in 1v1 and 4v4 but i dont play the same. a 1v1 requires balance and being able to have the correct stuff and enough stuff, 3v3 requires not dying to a massive rush, and then focusing on one portion of the overall army. as protoss i should not go air and ground in a 3v3 for the upgrades are less effective, and realistically i could have only charging zealots and collosi and do well as long as my other team mates support me. also moving together with good communication is key. in a 1v1 when you attack you are in full control in a 3v3 you control 1/3 of the force, this means use head sets ping and talk to each other.