I'm new to this game and just made an account. I can confirm this was my experience. New players that only have a pistol and crappy machine gun shouldn't be playing against snipers and rocket-launchers. It's not fun trying to defend a small area from constant explosions. Not to mention their cars are much faster than the default police cruiser. I closed the game after my 5-6th mission. No fun when matchmaking isn't there. It's just random difficulties thrown together.