Idea: Minigames!
Instead of a casual mode, I thought of an idea: minigames.
The minigames could be played on their own or while in queue for a match (similar to skirmish on Overwatch) and you can earn BP from doing them. Maybe not a lot, like lets say the max is 5000 BP per minigame round. They could be short and include types of games.
One minigame could be tag, where the survivors play tag with eachother either in a regular (but smaller) map, or on a 2D UI with little icons for their characters.
There could also be puzzle minigames and such.
Comments
Hatchet throwing for Huntress. The closer you are to the bullseye the more BP you get. The targets could move to make things harder.
Bottle toss for Clown. Instead of throwing bottles, he throws little plastic rings to get around bottles of The Afterpiece Tonic. Alternatively, you could race with Maurice! Try to escape the angry carnies and make it to the Entity's realm safe and sound.
You could have an obstacle course for Legion, vaulting with Frenzy to get the fastest time possible. Can be played with up to 4 players.
Oni and Billy could also have obstacle courses based on controlling the Chainsaw and Demon Dash.
A stealth minigame for Ghostface. Try to get somewhere without being spotted/broken out of Night Shroud.