Maps have a traditional L4D feel to them
Train pass through was very nice
Bots didn't get stuck or confused
Some common had a weird blue color overlay on them on map1
Custom car models don't fit into the L4D world at all
Switch at the end of map2 was hard to find as it didn't emit a glow, and the cut-scene didn't fit into the L4D world, I felt like I was watching the "Fast and the Furious"
Map 3 streets are way too cluttered at the start
Finale made no sense and the boat doesn't make a get away, it just sits there
Didn't see one special infected on the finale, I believe they were stuck behind one of the storage/container trailers as I heard a boomer but never saw him
Good campaign overall, it can be made into a great one with some work.