Jay, c'mon man. Don't be a killjoy. This game has a balence even with it being randomized. Im not gonna lie multiple tank spawns or early tank spawns are always suck. but even with that mother fucker, it could go either way. Random should never be a reason to dismiss the competitiveness of a game. Especially L4D where teamwork is an absolute requirement to succeed, if your team is a solid enough unit, they should be able survive any string of Bad Luck that the game throws at them. Alternatively, as the Infected, you may never get a Tank to help wreck shop. But with enough patience, coordation, and teamwork. Even a good surivor team can be handled. Its all about taking the hand your given and working with it. Kinda like life or card games.
