"Team Guest"

Today, I was ganged up on by three guests in an 8 player XXL map game. They appeared simultaneously in the lobby, and, wouldn't you know it, started as blue yellow and green after me, red. I settled in a nice peninsula, but the three all started in the same area. They then proceeded to announce themselves as "team guest" and do their best to ruin my game. Of course, given my prodigious skill at vortex wars and their general noob-ness, I beat them all single handed and finished fifth.

Isn't there any way to stop the scourge of double teaming?
I'm beginning to understand why some players hate guests...

Isn't there any way to stop the scourge of double teaming?

I'm beginning to understand why some players hate guests...