CombatMC:

(01:36 from video)

To be honest, I have done this kind of stuff too years ago.
I don't think this is cross teaming as they are just turning warzone
into sumo, where the two teams are still competing with each other.

Cross teaming is situations such as teammate tries to kill you
or block you with blocks, where your teammate is helping the enemy.

But I guess this is a problem in what HTCS says in the video:
"cam technically made this game so he can do whatever
he wants lol"

First of all, cam doesn't make the game.
Second, even he makes the game, he can't just do whatever he wants.