Gameplay videos on Youtube:
Solo Walkthrough
Co-op Walkthrough

- Short and sweet, it didn't feel too long as a single level.
- Fun with friends.
- You can touch the lava.
- The scripted events such as the volcano eruption and the bridge falling down are such neat details that added very nicely to the environment.
- Top favorite detail: The special events doesn't animate until all players have passed through. It doesn't activate if players are left behind or far in front. It waits until everyone is together to prevent those from wandering off too far.
- Props aren't intentionally blocking your way unless you're going in the wrong direction.

- The house's ladder was too tight to fit through. Easily solved by jumping down. This may be a problem when doing multiplayer.
- Wish there was more!
- If you dislike traveling through dark rooms, the houses is something you'll want to add a bright flashlight to. I didn't find a problem with this because of the mods installed.
- Some areas that looks easy to jump through such as the road is blocked off. It would be helpful to remove in case players need to hop over the rail should the highway become too ingested with zombies.
- Melee weapons should be scattered more around the map.

Invoked Inferno is a very fun campaign to play. It's aged well, and there wasn't a spot where I felt confused on where to go. The detail in the campaign was done so well, I thought this would've been a cut level from Left 4 Dead 1.

I totally recommend playing this map with friends. Other than that, I'm off to play the next map that the upload suggested in the description.

Well done, author and uploaders! The map works perfectly well. Keeping this one in my likes!