Pretty sure my friends and I played the most recent patch around 8 PM (I'm assuming we did play the most recent version since it was updated at 3 PM). While the campaign is enjoyable, there are a few issues I had with it.

On Map 1, the doors during the event open too slowly, making it somewhat boring. The extended duration diminishes the excitement, on top of it already being a pretty easy event.

Map 2 was frustrating, particularly with the tank spawn. During our first attempt, a relentless horde spawned in the sewer section alongside a random director tank. This never-ending horde only happened once, which was pretty confusing. On the second try, we triggered the key-card door just as a tank spawned in the sewers, which ended our run. The tank spawned earlier in the next attempt, and we decided to just ignore the door. The event on this map didn't seem to overbearing with the common infected but it would be preferable if zombies stopped spawning during the tank encounter.

Map 3 was okay, except for the gauntlet randomly spawning an excessive number of specials at one point.

On the finale, the first phase is too easy and feels like wasted time since the ambulance is such an easy spot to hold out in. I think the finale would be better if it was just the 2nd area and the scavenge. Honestly though it doesn't really need to be changed. The only change I would make to the finale itself is add maybe one more first aid kit somewhere and a throwable or two to the scavenge section.

Other than those issues the campaign is pretty fun, it's mainly just some of the events can be too punishing.