I'm going to lay it out like you did, with some major changes. It wouldn't be PvP, to start; that's what the Colisuem's for. The rest will be explained as I go on.

- You'd get specialized roles like Alpha Squad; leader, technician, guardian, scout. You can select a preferred one when joining and it would match up a team of each one. It would have a list of people waiting, for example, it might have, "13 leaders waiting, 24 guardians waiting, 0 technicians waiting, 3 scouts waiting" to show you which classes need to be filled so people can switch when they need to.

- You'd go in and be provided with a random mission, like from the prize wheel, so you never know what you might get. There'd be ones like you said, plus ones with unique enemies: giant Cradle dragonflies, large, dark-furred monsters called Prowlers, etc. You would pay 300 cr to join a team, and if you completed the mission you'd get 500 cr, 10 ce, and a random trinket or sometimes a unique Haven Defense item.

- As a pointer for the next part, you would gain a bar called the Stamina bar on your HUD. You have 220 Stamina to start off, but it does not regenerate like Mist Energy does. Reviving teammates would use Stamina, and doing specific actions such as the things mentioned in the next section would use it.

- The classes would get specialized trinkets and weapons; for example, a technician would get shock resist, and he'd also get a Spanner, a weapon that does little damage but can be used to power up special things scattered around the levels - defense turrets, heal pads, doors, and the occasional Arsenal Station. The scout would get freeze resist and utilize a Runner, a special device that allows him to latch onto roofs and walls to avoid enemies, traps or get to normally unreachable stops. Using such devices would use up Stamina.

- The things mentioned just then would be vital to finishing these levels. Teamwork would be required to get past areas. Technicians would need to open doors, hack panels, and aid the team with optional things such as turrets, heal pads and Arsenal Stations. Every few levels, you might find a Stamina Refiller right before an extremely hard area. Stamina Refillers would refill your Stamina up to a maximum of 65 refilled. Stamina Refillers do not need to be activated.

- To fail, your entire team must die at the same time. You lose instantly.

- Your guide in the levels would be Clebas, a Spiral intelligence agent. He would brief you on your missions and provide information sometimes. He would also give you your rewards. If you lose 5 times in a day, Clebas would inform you that you have failed to show a high enough standard and you must complete a full Clockworks level within 20 minutes before you could play again.

- If you quit the level, you are not refunded crowns. If you quit, the team is therefore incomplete and the next available person for the class that you were is immediately added to the level. If there is no one of that class, a random person from the class with the highest amount of waiting people will be picked and put into your game. Clebas will say to them, "You have been reassigned from a [preferred class] to a [changed class] because this squadron's [changed class] had to be extracted. We are sorry if this inconveniences you."

That's all I have for now.