I ran into a couple of these the las few days.
one was a blatant hack where it was like plat on gold. Annoying, can't stad people who do that in public matches, so I leeched to make up for my wasted consumables.
The next one seemed legit... at first.
then I noticed that even for arc grenade spam thing wer edying WAAAYY to fast. check to make sure that matchmaking didn't give me silver. no, its gold.
Then i notice the get turret.. with the fire rate of about 6/second.
And last week I had teh claymore with 500 reserve shots... that went down to -4 in the clip each time i fired.
And then there was the match with 32 grenades, and boxes gave you all them back.
I really wish people would keep those matches private... gah.
(though i think my fav was the one full of husks and aboms.. where you couldn't die. I tred to kill myself in game.. and health gate was basically an invulnerabilty level somehow. Whats the point of making a husk mode match.. where it's impossible to die?)