When me and my mate search for 2v2 matchmades, we never allow merging with other teams. And usually this does not happen. But there is one specific team of 3 players, where we always get matched against and get some random guy. We get thrown into a 3v3 while we specifically did not enable this.
What then always happens is that these three opponents always will be a one star so that it is 5k, a ten star melee general and a ten star bow general. Basically an immortal 5k set-up.
The result is people who are not even looking for 3v3 are forced to play a 5k battle against two extremely buffed generals. It also always is the exact same three people. I do not know wether it is a hack or a bug they are exploiting, but it is starting to get extremely annoying.